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Colorado Minerals!


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Quartz from Camp Bird Mine, near Ouray, Ouray County, Colorado [./colorado712/co712b122a.JPG] Quartz from Camp Bird Mine, near Ouray, Ouray County, Colorado [./colorado712/co712b122b.JPG] Quartz from Camp Bird Mine, near Ouray, Ouray County, Colorado [./colorado712/co712b122c.JPG]


No. CO712B122 - SOLD

Quartz

Locality: Camp Bird Mine, near Ouray, Ouray County, Colorado

Specimen Size: 4.2 x 3.1 x 2.8 cm (miniature)


This is a graceful “cathedral” Quartz group featuring several sharp, lustrous, prismatic, translucent / gemmy colorless crystals. An attractive miniature display piece, and a great overall specimen for a simple Colorado Quartz. The luster is certainly above average compared to most I have seen from this locality. The famous Camp Bird Mine, which started operating in 1896, produced over 5 million Troy ounces of Gold and Silver combined in nearly a century. This locality not only produced native metals, with literally thousands of beautiful crystallized display specimens, including some of the best sulfides from Colorado, but it also produced some wonderful non-metallic specimens.



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(click on the pictures to enlarge)

Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b123a.JPG] Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b123b.JPG]


No. CO712B123 - $ 100.00

Quartz “cast” after Anhydrite

Locality: Silver Point Mine, Ouray County, Colorado

Specimen Size: 6.1 x 4.4 x 3.6 cm (small cabinet)


A beautiful small cabinet sized specimen from the famous Silver Point Mine that produced some of the most well-known Quartz “casts” from the state. These specimens have been labeled as being Quartz after Barite pseudomorphs, but given the fact that Barite is chemically inert and nearly impossible to dissolve, it is almost certain that these pseudomorphs are Quartz replacing Anhydrite. Finally, it appears that somebody else is on board with me as I read from Bill Dameron on mindat that “Dr. Virgil Lueth, New Mexico Tech, concludes from studies (as-yet unpublished paper 4/2011) that these and all San Juan quartz epimorphs apparently after barite are in fact after anhydrite”. With that said, this specimen is a fine pseudomorph / cast consisting of hollow and blocky cavities of Quartz replacing the original mineral. The most attractive aspect of this specimen is the fact that the Quartz crystals are not microscopic or massive, but many of them are easily visible with the naked eye, and show absolutely water-clear transparency. Lastly, the interior of the specimen shows the distinctive brownish-red Hematite coating that is characteristic of these pieces. A wonderful specimen from a district that produced some of the most classic “casts” from all of Colorado.

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(click on the pictures to enlarge)

Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b124a.JPG] Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b124b.JPG] Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b124c.JPG]


No. CO712B124 - $ 90.00

Quartz “cast” after Anhydrite

Locality: Silver Point Mine, Ouray County, Colorado

Specimen Size: 6.3 x 3.6 x 3.1 cm (small cabinet)


A beautiful small cabinet sized specimen from the famous Silver Point Mine that produced some of the most well-known Quartz “casts” from the state. These specimens have been labeled as being Quartz after Barite pseudomorphs, but given the fact that Barite is chemically inert and nearly impossible to dissolve, it is almost certain that these pseudomorphs are Quartz replacing Anhydrite. Finally, it appears that somebody else is on board with me as I read from Bill Dameron on mindat that “Dr. Virgil Lueth, New Mexico Tech, concludes from studies (as-yet unpublished paper 4/2011) that these and all San Juan quartz epimorphs apparently after barite are in fact after anhydrite”. With that said, this specimen is a fine pseudomorph / cast consisting of hollow and blocky cavities of Quartz replacing the original mineral. The most attractive aspect of this specimen is the fact that the Quartz crystals are not microscopic or massive, but many of them are easily visible with the naked eye, and show absolutely water-clear transparency. Lastly, the interior of the specimen shows the distinctive brownish-red Hematite coating that is characteristic of these pieces. A wonderful specimen from a district that produced some of the most classic “casts” from all of Colorado.

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(click on the pictures to enlarge)

Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b125a.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b125b.JPG]


No. CO712B125 - $ 60.00

Quartz “cast” after Calcite

Locality: Crystal Cave, Ouray, Ouray County, Colorado

Specimen Size: 4.2 x 3.6 x 2.0 cm (miniature)


These specimens are some of the most classic Quartz after Calcite pseudomorphs or "casts" from any world locality and this specimen is a fantastic example showing the perfect scalenohedral form of the previous Calcite crystals which were coated by very small, almost "sugary", gem quality, colorless Quartz crystals. The Calcite crystals were then dissolved away by a solution that entered the pocket at a later date, leaving behind only the Quartz crystal "crust" replacement. A wonderful specimen from a district that produced some of the most classic "casts" from all of Colorado.



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(click on the pictures to enlarge)

Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b126a.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b126b.JPG]


No. CO712B126 - SOLD

Quartz “cast” after Calcite

Locality: Crystal Cave, Ouray, Ouray County, Colorado

Specimen Size: 4.8 x 4.2 x 2.2 cm (miniature)


These specimens are some of the most classic Quartz after Calcite pseudomorphs or "casts" from any world locality. This specimen is a fantastic example showing the perfect scalenohedral form of the previous Calcite crystals which were coated by very small, almost "sugary", gem quality, colorless Quartz crystals. The Calcite crystals were then dissolved away by a solution that entered the pocket at a later date, leaving behind only the Quartz crystal "crust" replacement. A wonderful specimen from a district that produced some of the most classic "casts" from all of Colorado.



To order this specimen click here




(click on the pictures to enlarge)

Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b127a.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b127b.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b127c.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b127d.JPG]


No. CO712B127 - $ 70.00

Quartz “cast” after Calcite

Locality: Crystal Cave, Ouray, Ouray County, Colorado

Specimen Size: 4.7 x 3.8 x 3.3 cm (miniature)


These specimens are some of the most classic Quartz after Calcite pseudomorphs or "casts" from any world locality and this specimen is a fantastic example showing the perfect scalenohedral form of the previous Calcite crystals which were coated by very small, almost "sugary", gem quality, colorless Quartz crystals. The Calcite crystals were then dissolved away by a solution that entered the pocket at a later date, leaving behind only the Quartz crystal "crust" replacement. A wonderful specimen from a district that produced some of the most classic "casts" from all of Colorado.



To order this specimen click here




(click on the pictures to enlarge)

Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b128a.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b128b.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b128c.JPG] Quartz “cast” after Calcite from Crystal Cave, Ouray, Ouray County, Colorado [./colorado712/co712b128d.JPG]


No. CO712B128 - $ 80.00

Quartz “cast” after Calcite

Locality: Crystal Cave, Ouray, Ouray County, Colorado

Specimen Size: 4.6 x 3.1 x 2.8 cm (miniature)


These specimens are some of the most classic Quartz after Calcite pseudomorphs or "casts" from any world locality and this specimen is a fantastic example showing the perfect scalenohedral form of the previous Calcite crystals which were coated by very small, almost "sugary", gem quality, colorless Quartz crystals. The Calcite crystals were then dissolved away by a solution that entered the pocket at a later date, leaving behind only the Quartz crystal "crust" replacement. A wonderful specimen from a district that produced some of the most classic "casts" from all of Colorado.



To order this specimen click here




(click on the pictures to enlarge)

Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b129a.JPG] Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b129b.JPG] Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b129c.JPG]


No. CO712B129 - $ 130.00

Quartz “cast” after Anhydrite

Locality: Silver Point Mine, Ouray County, Colorado

Specimen Size: 7.5 x 5.2 x 3.3 cm (small cabinet)


A beautiful small cabinet sized specimen from the famous Silver Point Mine that produced some of the most well-known Quartz “casts” from the state. These specimens have been labeled as being Quartz after Barite pseudomorphs, but given the fact that Barite is chemically inert and nearly impossible to dissolve, it is almost certain that these pseudomorphs are Quartz replacing Anhydrite. Finally, it appears that somebody else is on board with me as I read from Bill Dameron on mindat that “Dr. Virgil Lueth, New Mexico Tech, concludes from studies (as-yet unpublished paper 4/2011) that these and all San Juan quartz epimorphs apparently after barite are in fact after anhydrite”. With that said, this specimen is a fine pseudomorph / cast consisting of hollow and blocky cavities of Quartz replacing the original mineral. The most attractive aspect of this specimen is the fact that the Quartz crystals are not microscopic or massive, but many of them are easily visible with the naked eye, and show absolutely water-clear transparency. Lastly, the interior of the specimen shows the distinctive brownish-red Hematite coating that is characteristic of these pieces. A wonderful specimen from a district that produced some of the most classic “casts” from all of Colorado.

To order this specimen click here




(click on the pictures to enlarge)

Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b130a.JPG] Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b130b.JPG] Quartz “cast” after Anhydrite from Silver Point Mine, Ouray County, Colorado [./colorado712/co712b130c.JPG]


No. CO712B130 - $ 160.00

Quartz “cast” after Anhydrite

Locality: Silver Point Mine, Ouray County, Colorado

Specimen Size: 7.6 x 6.7 x 4.2 cm (small cabinet)


A beautiful small cabinet sized specimen from the famous Silver Point Mine that produced some of the most well-known Quartz “casts” from the state. These specimens have been labeled as being Quartz after Barite pseudomorphs, but given the fact that Barite is chemically inert and nearly impossible to dissolve, it is almost certain that these pseudomorphs are Quartz replacing Anhydrite. Finally, it appears that somebody else is on board with me as I read from Bill Dameron on mindat that “Dr. Virgil Lueth, New Mexico Tech, concludes from studies (as-yet unpublished paper 4/2011) that these and all San Juan quartz epimorphs apparently after barite are in fact after anhydrite”. With that said, this specimen is a fine pseudomorph / cast consisting of hollow and blocky cavities of Quartz replacing the original mineral. The most attractive aspect of this specimen is the fact that the Quartz crystals are not microscopic or massive, but many of them are easily visible with the naked eye, and show absolutely water-clear transparency. Lastly, the interior of the specimen shows the distinctive brownish-red Hematite coating that is characteristic of these pieces. A wonderful specimen from a district that produced some of the most classic “casts” from all of Colorado.

To order this specimen click here




(click on the pictures to enlarge)

Quartz “cast” after Anhydrite from Ouray County, Colorado [./colorado712/co712b131a.JPG] Quartz “cast” after Anhydrite from Ouray County, Colorado [./colorado712/co712b131b.JPG] Quartz “cast” after Anhydrite from Ouray County, Colorado [./colorado712/co712b131c.JPG]


No. CO712B131 - $ 165.00

Quartz “cast” after Anhydrite

Locality: Ouray County, Colorado

Specimen Size: 9.2 x 7.5 x 4.2 cm (small cabinet)


A beautiful small cabinet sized specimen from an area that produced some of the most well-known Quartz “casts” from the state. These specimens have been labeled as being Quartz after Barite pseudomorphs, but given the fact that Barite is chemically inert and nearly impossible to dissolve, it is almost certain that these pseudomorphs are Quartz replacing Anhydrite. Finally, it appears that somebody else is on board with me as I read from Bill Dameron on mindat that “Dr. Virgil Lueth, New Mexico Tech, concludes from studies (as-yet unpublished paper 4/2011) that these and all San Juan quartz epimorphs apparently after barite are in fact after anhydrite”. With that said, this specimen is a fine pseudomorph / cast consisting of hollow and thin cavities of Quartz replacing the original mineral. The most attractive aspect of this specimen is the fact that the Quartz crystals are not microscopic or massive, but many of them are easily visible with the naked eye. A wonderful specimen from a district that produced some of the most classic “casts” from all of Colorado.



To order this specimen click here




(click on the pictures to enlarge)

Quartz (doubly-terminated “floater”) from B. K. Pocket, Meteor Pocket Area, South of Ouray, Ouray County, Colorado [./colorado712/co712b132a.JPG] Quartz (doubly-terminated “floater”) from B. K. Pocket, Meteor Pocket Area, South of Ouray, Ouray County, Colorado [./colorado712/co712b132b.JPG] Quartz (doubly-terminated “floater”) from B. K. Pocket, Meteor Pocket Area, South of Ouray, Ouray County, Colorado [./colorado712/co712b132c.JPG]


No. CO712B132 - $ 90.00

Quartz (doubly-terminated “floater”)

Locality: B. K. Pocket, Meteor Pocket Area, South of Ouray, Ouray County, Colorado

Specimen Size: 7.7 x 2.1 x 1.1 cm (small cabinet)


A most unusual, doubly-terminated “floater” crystal of white / colorless Quartz from this locality collected by Robert Stoufer with Carl Auclair in 1998. It’s obviously from a very obscure locality, and conspicuously different from most Quartz crystals I have seen from this area. The piece unquestionably shows a strange habit, and it is indeed a single crystal, not a group of intergrown complex crystals. Great luster and certainly gemmy / translucent in areas as well. If you collect Quartz or Colorado minerals, don’t miss out on this peculiar crystal from this well-known Quartz producing region.

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(click on the pictures to enlarge)

Quartz (GEM doubly-terminated “floater”) from Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado [./colorado712/co712b133a.JPG] Quartz (GEM doubly-terminated “floater”) from Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado [./colorado712/co712b133b.JPG] Quartz (GEM doubly-terminated “floater”) from Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado [./colorado712/co712b133c.JPG]


No. CO712B133 - $ 80.00

Quartz (GEM doubly-terminated “floater”)

Locality: Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado

Specimen Size: 2.2 x 1.1 x 0.7 cm (thumbnail)


This piece was collected by Patrick and Carl Auclair in the 1990s. It is a superb quality, razor sharp, rather lustrous, doubly-terminated, GEM quality / WATER CLEAR “floater” crystal of colorless Quartz from an area that RARELY produces Quartz of this quality. Actually, Quartz of this quality is not usually seen from any locality in Colorado. It’s much more reminiscent of Alpine Quartz from the standpoint of luster and gemminess. For reference, the piece simply looks better in person than it does in the photos as all of the most miniscule particulate inside the crystal shows up under the lens of the camera. It is a superb thumbnail Quartz specimen that would make a worthwhile addition to a thumbnail suite, or a Quartz collection.



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(click on the pictures to enlarge)

Quartz (superb quality) from Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado [./colorado712/co712b134a.JPG] Quartz (superb quality) from Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado [./colorado712/co712b134b.JPG] Quartz (superb quality) from Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado [./colorado712/co712b134c.JPG]


No. CO712B134 - $ 115.00

Quartz (superb quality)

Locality: Patrick’s Pocket, Ajax Vein, Ajax Mountain, San Miguel County, Colorado

Specimen Size: 4.5 x 1.2 x 1.0 cm (miniature)


This piece was collected by Patrick and Carl Auclair in the 1990s. The piece is a superb quality, razor sharp, rather lustrous, GEM quality crystal group of colorless Quartz from an area that RARELY produces Quartz of this quality. Actually, Quartz of this quality is not usually seen from any locality in Colorado. It’s much more reminiscent of Alpine Quartz from the standpoint of luster and gemminess. For reference, the piece simply looks better in person than it does in the photos as all of the most miniscule particulate inside the crystal shows up under the lens of the camera. It is a superb miniature Colorado Quartz specimen that would make a worthwhile addition to a thumbnail suite, or a Quartz collection.



To order this specimen click here




(click on the pictures to enlarge)

Galena with Sphalerite from 2400’ Level, 2415 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b135a.JPG] Galena with Sphalerite from 2400’ Level, 2415 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b135b.JPG] Galena with Sphalerite from 2400’ Level, 2415 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b135c.JPG] Galena with Sphalerite from 2400’ Level, 2415 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b135d.JPG] Galena with Sphalerite from 2400’ Level, 2415 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b135e.JPG] Galena with Sphalerite from 2400’ Level, 2415 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b135f.JPG]


No. CO712B135 - SOLD

Galena with Sphalerite

Locality: 2400’ Level, 2415 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado

Specimen Size: 4.3 x 3.6 x 2.6 cm (miniature)
Largest Galena: 2.2 cm


ex.  Brian Kosnar


Very hard to photograph, but you can still tell that the sheer quality of this gorgeous miniature specimen is a step above a large percentage of the Galena specimens from this locality. The combination of TOP luster, razor sharp faces and good sized crystals makes for a wonderful overall specimen. Galena doesn’t get much more lustrous than this, with showy, intense metallic silvery faces, and the Sphalerite is just as fine with very sharp, lustrous crystals. Virtually damage free on the display side. If you are a sulfide collector, or if you enjoy fine crystallized specimens from Colorado, don’t miss out on this one. The Idarado Mine was one of the most productive San Juan localities, and actually extended through the Treasury Tunnel into Ouray County on Red Mountain. This mine is best known for its attractive Manganoan Calcite specimens, along with excellent Quartz display specimens, sulfides, and, of course, metals like Gold.



To order this specimen click here




(click on the pictures to enlarge)

Calcite on Quartz from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b136a.JPG] Calcite on Quartz from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b136b.JPG] Calcite on Quartz from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b136c.JPG] Calcite on Quartz from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b136d.JPG] Calcite on Quartz from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b136e.JPG]


No. CO712B136 - $ 225.00

Calcite on Quartz

Locality: Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado

Specimen Size: 8.1 x 7.3 x 6.2 cm (small cabinet)


A most unusual Calcite specimen from the Idarado that clashes with the typical “feathery” Manganoan Calcites that we are used to seeing from this mine. Small groups of what I call “popcorn” Calcite are overgrowing a group of “Milky” Quartz crystals. Very different for the Idarado Mine, and certainly worth picking up if you are a collector of San Juan minerals. The Idarado Mine was one of the most productive San Juan localities, and actually extended through the Treasury Tunnel into Ouray County on Red Mountain. This mine is best known for its attractive Manganoan Calcite specimens, along with excellent Quartz display specimens, sulfides, and, of course, metals like Gold.



To order this specimen click here




(click on the pictures to enlarge)

Calcite and Pyrite on Fluorite from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b137a.JPG] Calcite and Pyrite on Fluorite from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b137b.JPG] Calcite and Pyrite on Fluorite from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b137c.JPG] Calcite and Pyrite on Fluorite from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b137d.JPG] Calcite and Pyrite on Fluorite from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b137e.JPG] Calcite and Pyrite on Fluorite from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b137f.JPG] Calcite and Pyrite on Fluorite from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b137g.JPG]


No. CO712B137 - SOLD

Calcite and Pyrite on Fluorite

Locality: Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado

Specimen Size: 6.7 x 6.2 x 6.1 cm (small cabinet)


A different kind of Calcite specimen from the Idarado which features sharp, milky white Calcite scalenohedra associated with sparkling golden Pyrite on a fairly large lilac and pale green Fluorite crystal! Fluorite is not common from the Idarado Mine, and to have a piece like this is completely out of the ordinary from what we are used to seeing from this locality. Positively worth picking up if you’re a collector of San Juan minerals. The Idarado Mine was one of the most productive San Juan localities, and actually extended through the Treasury Tunnel into Ouray County on Red Mountain. This mine is best known for its attractive Manganoan Calcite specimens, along with excellent Quartz display specimens, sulfides, and of course metals like Gold.



To order this specimen click here




(click on the pictures to enlarge)

Pyrite with Quartz and Galena from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b138a.JPG] Pyrite with Quartz and Galena from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b138b.JPG] Pyrite with Quartz and Galena from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b138c.JPG] Pyrite with Quartz and Galena from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b138d.JPG] Pyrite with Quartz and Galena from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b138e.JPG] Pyrite with Quartz and Galena from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b138f.JPG]


No. CO712B138 - SOLD

Pyrite with Quartz and Galena

Locality: 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado

Specimen Size: 6.2 x 5.7 x 2.3 cm (small cabinet)
Largest Pyrite: 1.1 cm


ex.  George Robertson


This piece came to my father from noted Colorado collector George Robertson. According to the label, the specimen was collected in 1969 and features many sharp, rather lustrous, soft golden metallic pyritohedra of Pyrite which are intergrown with Quartz and Galena on the reverse side. The crystals are in good shape for the most part, but there are some nicks here and there, hence the lower price. Good crystallized Pyrites from the Idarado are not common on the market as Pyrite is often a secondary species and typically found coating other minerals. The Idarado Mine was one of the most productive San Juan localities, and actually extended through the Treasury Tunnel into Ouray County on Red Mountain. This mine is best known for its attractive Manganoan Calcite specimens, along with excellent Quartz display specimens, sulfides, and, of course, metals like Gold.



To order this specimen click here




(click on the pictures to enlarge)

Hubnerite on Quartz from 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b139a.JPG] Hubnerite on Quartz from 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b139b.JPG] Hubnerite on Quartz from 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b139c.JPG] Hubnerite on Quartz from 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b139d.JPG] Hubnerite on Quartz from 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b139e.JPG] Hubnerite on Quartz from 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b139f.JPG] Hubnerite on Quartz from 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b139g.JPG]


No. CO712B139 - SOLD

Hubnerite on Quartz

Locality: 1224 Stope of the Black Bear section of the Idarado Mine, Telluride, San Miguel County, Colorado

Specimen Size: 5.8 x 4.2 x 3.3 cm (small cabinet)


ex.  Richard A. Kosnar


A very hard to find Hubnerite from the famous Idarado Mine near Telluride. The highly lustrous, foliated black “blades” are actually associated with rarely seen minor green Fluorite and sitting on a milky Quartz crystal. The piece was collected in 1952 by noted San Juan miner, Max Gallegos. If you collect San Jan minerals, don’t miss out on this hard to find beauty.



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(click on the pictures to enlarge)

Chalcopyrite (huge crystals!) from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b140a.JPG] Chalcopyrite (huge crystals!) from 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado [./colorado712/co712b140b.JPG]


No. CO712B140 - SOLD

Chalcopyrite (huge crystals!)

Locality: 1109 Stope, Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado

Specimen Size: 7.0 x 6.3 x 6.1 cm (small cabinet)


ex.  George Robertson and Richard Kosnar


Let me start by saying that to the best of my knowledge, these are the largest Chalcopyrite crystals from the Idarado Mine! This mine was one of the most productive San Juan localities, and actually extended through the Treasury Tunnel into Ouray County on Red Mountain. It was best known for its attractive Manganoan Calcite specimens, along with excellent Quartz display specimens, sulfides, and, of course, metals like Gold. This piece was mined in 1972 and came originally from noted Colorado collector George Robertson and was later acquired in trade by my father. This piece features incredibly large (for this locality) sharp, lustrous, rich golden-yellow metallic tetrahedral crystals of Chalcopyrite associated with prismatic silvery-grey Quartz and minor associated black Sphalerite on the reverse side of the piece. If you are a collector of these specimens, especially of San Juan sulfides, you can’t afford to miss out on such an impactful and significant Chalcopyrite.



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(click on the pictures to enlarge)

Quartz var (“Amethyst”) from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado, [./colorado712/co712b141a.JPG] Quartz var (“Amethyst”) from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado, [./colorado712/co712b141b.JPG] Quartz var (“Amethyst”) from Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado, [./colorado712/co712b141c.JPG]


No. CO712B141 - $ 100.00

Quartz var (“Amethyst”)

Locality: Argentine Vein, Idarado Mine, Telluride, San Miguel County, Colorado,

Specimen Size: 7.2 x 1.3 x 1.3 cm (small cabinet)


A wonderful, doubly-terminated crystal of colorless / white Quartz associated with purple Amethyst on one end from the famous Idarado Mine. Rarely does one encounter true Amethyst from this mine, especially in crystals this size. If you collect Quartz from Colorado, don’t miss out on this attractive d/t crystal from this classic Gold mine near Telluride.



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Chalcopyrite with Sphalerite on Quartz from Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado [./colorado712/co712b142a.JPG] Chalcopyrite with Sphalerite on Quartz from Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado [./colorado712/co712b142b.JPG] Chalcopyrite with Sphalerite on Quartz from Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado [./colorado712/co712b142c.JPG] Chalcopyrite with Sphalerite on Quartz from Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado [./colorado712/co712b142d.JPG] Chalcopyrite with Sphalerite on Quartz from Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado [./colorado712/co712b142e.JPG] Chalcopyrite with Sphalerite on Quartz from Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado [./colorado712/co712b142f.JPG] Chalcopyrite with Sphalerite on Quartz from Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado [./colorado712/co712b142g.JPG]


No. CO712B142 - $ 300.00

Chalcopyrite with Sphalerite on Quartz

Locality: Little Todd Vein, Bandora Mine, South Mineral Creek, San Juan County, Colorado

Specimen Size: 7.3 x 6.1 x 4.8 cm (small cabinet)
Largest Chalcopyrite: 1.4 cm


The Bandora Mine was intermittently active from 1884 to about 1950. This mine has produced some of the finest Chalcopyrite specimens ever found in Colorado and this is an excellent small cabinet of said material. This specimen was mined by Charles Mochenbacher in 1986. The striking, sharp, interpenetrating Chalcopyrite twins at the top of the specimen show beautiful iridescence on the bright, golden-brassy, lightly striated crystal faces and are sitting atop a matrix of intermixed Quartz “needles” with Sphalerite, Pyrite and Galena on the sides and back of the specimen. The aesthetics of the piece and scarcity of the material make it a desirable display specimen from this historic mine, which is best known for its Chalcopyrite.



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Pyrite on Quartz “casts” after Anhydrite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b143a.JPG] Pyrite on Quartz “casts” after Anhydrite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b143b.JPG] Pyrite on Quartz “casts” after Anhydrite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b143c.JPG] Pyrite on Quartz “casts” after Anhydrite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b143d.JPG] Pyrite on Quartz “casts” after Anhydrite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b143e.JPG] Pyrite on Quartz “casts” after Anhydrite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b143f.JPG]


No. CO712B143 - SOLD

Pyrite on Quartz “casts” after Anhydrite

Locality: Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 7.7 x 6.3 x 5.2 cm (small cabinet)
Largest Crystal: 1.0 cm


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside, it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations, but the Sunnyside offered a lot more in the way of minerals. This piece is a beautiful small cabinet display specimen featuring dozens of sharp pyritohedral Pyrite crystals with good luster and soft golden color. The reverse side of the piece shows excellent “casts” of white Quartz replacing Anhydrite, creating unique striated and hollow crystallization. If you are a San Juan mineral collector, you’ll know that good specimens from the Sunnyside Mine are principally non-existent on the market these days, especially attractive sulfide specimens like this one.



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Sphalerite with Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b144a.JPG] Sphalerite with Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b144b.JPG] Sphalerite with Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b144c.JPG] Sphalerite with Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b144d.JPG] Sphalerite with Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b144e.JPG]


No. CO712B144 - $ 0.00 - ON HOLD

Sphalerite with Quartz

Locality: Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 7.2 x 4.7 x 3.1 cm (small cabinet)


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations, but the Sunnyside offered a lot more in the way of minerals. This piece is a beautiful small cabinet display specimen featuring hundreds of sharp, lustrous, jet-black Sphalerite crystals which are associated with rather lustrous, prismatic, sharp, white Quartz crystals flaring off the side of the piece. A great association specimen from this prolific locality. If you are a San Juan mineral collector, you’ll know that good specimens from the Sunnyside Mine are principally non-existent on the market these days, especially attractive sulfide specimens like this one.



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Fluorite with Rhodochrosite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b145a.JPG] Fluorite with Rhodochrosite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b145b.JPG] Fluorite with Rhodochrosite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b145c.JPG] Fluorite with Rhodochrosite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b145d.JPG] Fluorite with Rhodochrosite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b145e.JPG] Fluorite with Rhodochrosite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b145f.JPG] Fluorite with Rhodochrosite from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b145g.JPG]


No. CO712B145 - $ 800.00

Fluorite with Rhodochrosite

Locality: Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 3.5 x 2.9 x 2.2 cm (miniature)


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations. This piece is a beautiful small miniature display specimen featuring several, highly lustrous, GEM quality, soft green color, HIGHLY modified (combination cubes, dodecahedrons and octahedrons) crystal groups of Fluorite with a selective deposition of soft pink Rhodochrosite on one side of the piece. This iconic association is amongst the most desirable of all specimens from the San Juan mountains, and truly are so few and far between on the market these days. The quality of the Fluorite is superb, and the touch of the pink Rhodochrosite makes the piece that much better.



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Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146a.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146b.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146c.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146d.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146e.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146f.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146g.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146h.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146i.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146j.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146k.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b146l.JPG]


No. CO712B146 - $ 400.00

Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz

Locality: 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 9.2 x 8.3 x 6.2 cm (small cabinet)


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations, but the Sunnyside offered a lot more in the way of minerals. This piece is a beautiful small cabinet display specimen featuring hundreds of sharp, well-defined “casts” of distinctive soft butterscotch colored Kutnohorite replacing preexisting scalenohedral crystals of Calcite which are aesthetically sitting atop crystallized /crystalline slightly purplish color Quartz. Additionally, one can see bright pink Rhodochrosite at the base of the piece for a great touch! This piece was collected in 1969 by noted San Jan miner, Max Gallegos. We acquired the piece directly from Max some years after he retired from mining. This piece is the best specimen of this material that I have seen from the Sunnyside Mine, and really unusual for the locality. This goes beyond a Colorado specimen, as it’s just adds another layer of charm that is not often seen in your average mineral specimens. If you’re a San Juan mineral collector, you’ll know that good specimens from the Sunnyside Mine are principally non-existent on the market these days, especially attractive sulfide specimens like this one.



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Sphalerite with Galena and Pyroxmangite from Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b147a.JPG] Sphalerite with Galena and Pyroxmangite from Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b147b.JPG] Sphalerite with Galena and Pyroxmangite from Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b147c.JPG] Sphalerite with Galena and Pyroxmangite from Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b147d.JPG] Sphalerite with Galena and Pyroxmangite from Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b147e.JPG] Sphalerite with Galena and Pyroxmangite from Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b147f.JPG] Sphalerite with Galena and Pyroxmangite from Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b147g.JPG]


No. CO712B147 - SOLD

Sphalerite with Galena and Pyroxmangite

Locality: Washington Vein, 1740 West Stope off the Main Level going to up G Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 4.2 x 3.2 x 1.7 cm (miniature)


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations, but the Sunnyside offered a lot more in the way of minerals. This piece is a beautiful miniature display specimen featuring dozens of sharp, lustrous, jet-black Sphalerite crystals which are intergrown with bright, metallic, almost “melted” looking, somewhat rounded crystals of Galena. Additionally, the two sulfides are sitting atop a thin slab of matrix coated by electric pink Pyroxmangite! For decades, it was reported that the pink silicate from the Sunnyside Mine was Rhodonite, but this is not the case as everything that has been analyzed from this locality has come back as Pyroxmangite, which is much less common in the mineral world. Lastly, one can see a single white prismatic Quartz crystal jutting out of the side of the piece. What a great association specimen from this prolific locality. If you are a San Juan mineral collector, you’ll know that good specimens from the Sunnyside Mine are lacking on the market these days, especially attractive sulfide association specimens like this one.



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Rhodochrosite on Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b148a.JPG] Rhodochrosite on Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b148b.JPG] Rhodochrosite on Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b148c.JPG] Rhodochrosite on Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b148d.JPG]


No. CO712B148 - $ 50.00

Rhodochrosite on Quartz

Locality: Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 2.3 x 1.6 x 1.5 cm (thumbnail)
Largest Crystal: 4 mm


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite specimens. This piece features several sharp, lustrous, soft pink color, well-formed rhombohedra of Rhodochrosite on Quartz and sulfide matrix. The piece was collected by Alan Noris at some point between the 1940s and the 1960s. More than just a reference thumbnail specimen, as the quality of the rhombs, small they might be, is excellent.



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Sphalerite from Footwall Stope, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b149a.JPG] Sphalerite from Footwall Stope, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b149b.JPG] Sphalerite from Footwall Stope, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b149c.JPG] Sphalerite from Footwall Stope, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b149d.JPG] Sphalerite from Footwall Stope, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b149e.JPG] Sphalerite from Footwall Stope, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b149f.JPG]


No. CO712B149 - SOLD

Sphalerite

Locality: Footwall Stope, Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 6.1 x 3.8 x 2.6 cm (small cabinet)


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations, but the Sunnyside offered a lot more in the way of minerals. This piece is a beautiful small cabinet display specimen featuring sharp, lustrous, jet-black Sphalerite crystals which are associated with minor Chalcopyrite. A good association specimen from this prolific locality. If you’re a San Juan mineral collector, you’ll know that good specimens from the Sunnyside Mine are principally non-existent on the market these days, especially sulfide specimens like this one.



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Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150a.JPG] Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150b.JPG] Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150c.JPG] Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150d.JPG] Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150e.JPG] Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150f.JPG] Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150g.JPG] Rhodochrosite with Fluorite and Quartz from Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b150h.JPG]


No. CO712B150 - $ 450.00

Rhodochrosite with Fluorite and Quartz

Locality: Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 7.7 x 5.1 x 3.7 cm (small cabinet)
Largest Fluorite: 6 mm


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside, it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations. This piece is a beautiful small cabinet display specimen featuring several, cotton candy pink rhombs of Rhodochrosite which have an interesting, almost skeletal appearance, which are associated with sharp, lustrous, gemmy, light green color Fluorite tetrahexahedra with cubic modifications. A bed of milky Quartz and granular sulfides make for a very pleasing matrix. This iconic association is amongst the most desirable of all specimens from the San Juan mountains, and they truly are few and far between these days. The quality of the Fluorite is superb, and the crystal habit is excessively rare in my experience with specimens from this mine. The pink Rhodochrosite and white Quartz rounds out the specimen perfectly, creating an ideal Sunnyside Rhodo / Fluorite combination.



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Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151a.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151b.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151c.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151d.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151e.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151f.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151g.JPG] Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz from 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado [./colorado712/co712b151h.JPG]


No. CO712B151 - SOLD

Kutnohorite (Fe-bearing) forming “casts” after Calcite on Quartz

Locality: 2045 Stope, F Level, Sunnyside Mine, near Gladstone, San Juan County, Colorado

Specimen Size: 4.6 x 3.8 x 2.5 cm (miniature)


The Sunnyside Mine was one of the most prolific localities in the history of San Juan mining, producing over $150 Million in total metals over the course of its life. In addition to the tremendous amounts of Gold and other metals that came out of the Sunnyside, it provided collectors with some of the most distinctive and memorable display specimens from any locality in southwestern Colorado. This mine is probably best known for its amazing pink Rhodochrosite and green Fluorite associations, but the Sunnyside offered a lot more in the way of minerals. This piece is a beautiful miniature display specimen featuring dozens of sharp, well-defined “casts” of distinctive, soft butterscotch colored Kutnohorite replacing preexisting scalenohedral crystals of Calcite which are aesthetically sitting atop crystallized / crystalline, slightly purplish color Quartz. Additionally, one can see bright pink Rhodochrosite at the base of the piece for a great touch! This piece was collected in 1969 by noted San Juan miner Max Gallegos. We acquired the piece directly from Max some years after he retired from mining. This piece is the best specimen of this material that I have seen from the Sunnyside Mine, and really unusual for the locality. This goes beyond a Colorado specimen, as it  just adds another layer of charm that is not often seen in your average mineral specimens. If you are a San Juan mineral collector, you’ll know that good specimens from the Sunnyside Mine are principally non-existent on the market these days, especially attractive sulfide specimens like this one.



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