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Thumbnail Mix August 2007




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Calcite from Fozichong (Fuzichong) Orefield, Guangxi Zhuang Autonomous Region, China. [./TNMix807and1107/CalChTN8071.JPG] Calcite from Fozichong (Fuzichong) Orefield, Guangxi Zhuang Autonomous Region, China. [./TNMix807and1107/CalChTN8071 (1).JPG] Calcite from Fozichong (Fuzichong) Orefield, Guangxi Zhuang Autonomous Region, China. [./TNMix807and1107/CalChTN8071 (2).JPG]


No. CalCh TN 8071 - $ 100.00

Calcite

Locality: Fozichong (Fuzichong) Orefield, Guangxi Zhuang Autonomous Region, China.

Specimen Size: 3.8 x 1.7 x 0.9 cm (miniature)


These Calcite specimens are well known for their attractive basal scalenohedra or "barrel"-shaped crystals (many are also tabular in habit), and this is truly the only thumbnail specimen of this material that I've seen period. When these specimens first came out, they instantly reminded me of the old classic Calcites from St. Andreasberg, Germany as they were very similar in habit, luster, color and gemminess. They even have "white caps" like many of the St. Andreasberg pieces I have seen. It seems that these specimens have quickly disappeared from the market in recent years and I believe any Chinese collection or any Calcite collection needs one of these specimens because they are very distinctive and attractive. A very fairly priced thumbnail of this beautiful material.

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Microcline (var: Microcline (var:


No. AMAZ TN 8071 - SOLD

Microcline (var: "Amazonite")

Locality: Pike's Peak area, Park County, Colorado

Specimen Size: 3.3 x 2.5 x 2.2 cm (miniature)


Simply put, the finest Amazonite crystals in the world are found in around the Pike's Peak Batholith. The area has continued to produce fine quality crystals for the better part of a century. Here we have a very sharp, lustrous, rich blue green color Amazonite crystal that is complete on all sides. The color is nearly as good as it gets for Amazonite, and the crystal itself is actually translucent around the edges! This specimen was collected by the late George Fisher, a very prominant field collector of Amazonite specimens in Colorado for years.



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(click on highlighted picture to enlarge)

Sphalerite from Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana [./TNMix807and1107/SphalINTN8071 (1).JPG] Sphalerite from Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana [./TNMix807and1107/SphalINTN8071.JPG] Sphalerite from Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana [./TNMix807and1107/SphalINTN8071 (4).JPG] Sphalerite from Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana [./TNMix807and1107/SphalINTN8071 (3).JPG]


No. SPHAL IN TN 8071 - SOLD

Sphalerite

Locality: Berry Materials Corp. Quarry, North Vernon, Jennings County, Indiana

Specimen Size: 5.5 x 3.5 x 2.5 cm (small cabinet)
Sphalerite crystal group: 2.0 cm.


It is a real treat to see such a fine matrix Sphalerite specimen from this locality. This quarry is best known for its distinctive golden scalenohedral Calcite specimens, but Sphalerites are few and far between, especially in attractive display specimens such as this. The piece features a wonderful, sharp, lustrous. black crystal cluster of Sphalerite aesthetically sitting on matrix. The piece is not a thumbnail, but believe it could easily be trimmed down to create a superb competition-quality thumbnail if one so desired. The piece is just as impressive as a miniature, and is one of the best specimens in this size range that I have had to offer.



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Prehnite on Quartz from Block C, Merelani Mines, Umba Valley, Lelatema Mountains, Arusha Region, Tanzania [./TNMix807and1107/PrehTN8071 (1).JPG] Prehnite on Quartz from Block C, Merelani Mines, Umba Valley, Lelatema Mountains, Arusha Region, Tanzania [./TNMix807and1107/PrehTN8071 (2).JPG] Prehnite on Quartz from Block C, Merelani Mines, Umba Valley, Lelatema Mountains, Arusha Region, Tanzania [./TNMix807and1107/PrehTN8071 (7).JPG] Prehnite on Quartz from Block C, Merelani Mines, Umba Valley, Lelatema Mountains, Arusha Region, Tanzania [./TNMix807and1107/PrehTN8071.JPG]


No. PREH TN 8071 - SOLD

Prehnite on Quartz

Locality: Block C, Merelani Mines, Umba Valley, Lelatema Mountains, Arusha Region, Tanzania

Specimen Size: 3.5 x 2.7 x 2.0 cm (miniature)
Prehnite


This new find of greenish yellow Prehnites has really made an impression on me because they are some of the finest quality crystallized Prehnites that I have encountered in a long time. The combination of rich vibrant color along with wonderfully gemmy lustrous crystallization puts them in the upper ranks for quality of any Prehnite specimens around. These specimens are from the same mines that produce the world famous gem Tanzanite crystals in Tanzania. This piece is one of the few matrix Prehnites that I've seen from this locality featuring beautiful, lustrous, gemmy, greenish yellow "clamshell"-shaped crystals forming a spherical crystal aggregate aesthetically sitting atop a gemmy colorless Quartz crystal fragment. The Prehnite itself is virtually undamaged and the color is actually more vibrant in person than the photos might indicate. The piece could easily be trimmed down to create a "box buster" thumbnail.



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Galena from Picher Field, Tri-State District, Ottawa County, Oklahoma [./TNMix807and1107/GalTN8071 (4).JPG] Galena from Picher Field, Tri-State District, Ottawa County, Oklahoma [./TNMix807and1107/GalTN8071 (3).JPG] Galena from Picher Field, Tri-State District, Ottawa County, Oklahoma [./TNMix807and1107/GalTN8071.JPG] Galena from Picher Field, Tri-State District, Ottawa County, Oklahoma [./TNMix807and1107/GalTN8071 (1).JPG]


No. GAL TN 8071 - SOLD

Galena

Locality: Picher Field, Tri-State District, Ottawa County, Oklahoma

Specimen Size: 3.5 x 2.2 x 1.7 cm (miniature)
largest Galena: 1.3 cm.


A striking and rather dramatic large thumbnail size specimen comprised of steel-grey cubic Galena crystals with minor octahedral modifications and unique epitaxial overgroths of additional cuboctahedral Galena crystals all of which are associated with minor reddish-brown Sphalerite on matrix. The large crystal at the top of the specimen is complete all the way around and virtually undamaged. This district has produced some of the most prolific Galena specimens in the world, and the value of these specimens has steadily been on the rise in recent years. A piece like this would be very difficult to replace at any price due to the unique crystals and aesthetic orientation.



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Chalcopyrite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [./TNMix807and1107/CuFeSTN8071 (1).JPG] Chalcopyrite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [./TNMix807and1107/CuFeSTN8071.JPG]


No. CuFeS TN 8071 - $ 30.00

Chalcopyrite

Locality: Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru

Specimen Size: 2.9 x 1.5 x 0.8 cm (thumbnail)


A very sculptural Chalcopyrite crystal that almost looks like it was etched, but actually shows sharp faces on all sides. Associated at the base of the crystal are some small black Sphalerite crystals and grey cubic Galena crystals. A few people who haved looked at this piece tell me that it resembles a duck or a snake depending upon how you view it. No matter how you view it, it has to be one of the most unique Chalcopyrite crystals to ever come out of the famous Huanzala mine, and a real bargain considering its unusual form.

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Whewellite from Vein Erma II, East Block 1159, 1575 level, Mine 377, Hartenstein, Saxony, Germany [./TNMix807and1107/WhewTN8071.JPG] Whewellite from Vein Erma II, East Block 1159, 1575 level, Mine 377, Hartenstein, Saxony, Germany [./TNMix807and1107/WhewTN8071 (1).JPG]


No. WHEW TN 8071 - $ 200.00 SOLD

Whewellite

Locality: Vein Erma II, East Block 1159, 1575 level, Mine 377, Hartenstein, Saxony, Germany

Specimen Size: 2.0 x 1.8 x 1.3 cm (thumbnail)


This is a truly classic example of this material showing a delightful "fan"-shaped aggregate with accenting sidecard crystals of a snow white color. The piece shows slight translucency around the edges with an almost silky appearance on the surface. These specimens are often small and nearly impossible to find on the market, especially in the United States. This is one of the most attractive Whewellite specimens that I have offered and would make a great addition to not only a thumbnail collection, but any German mineral collection, or an overall European mineral collection.

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(click on highlighted picture to enlarge)

Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8071.JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8071 (5).JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8071 (3).JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8071 (7).JPG]


No. CU KAZ TN 8071 - SOLD

Copper

Locality: Itauz Mine, Dzhezkazgan Oblast, Kazakhstan

Specimen Size: 3.0 x 0.9 x 0.4 cm (thumbnail)


Most people are familiar with the extraordinary Copper specimens that show amazing skeletal forms and dramatic twinning. I consider this to be one of the most significant Copper discoveries in the last 50 years, and they have already proven themselves as modern-day classics. The quality, sharpness and dramatic crystal growth have set these pieces apart from other crystallized Copper specimens around the world. This piece is an elegant thumbnail specimen resembling a "feather" in appearance and is comprised of razor sharp "Spinel"-Law twinned crystals with a fabulous patina. For the size and aesthetics, I think it is very fairly priced, especially because it is undamage and complete on all sides.



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Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8072.JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8072 (4).JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8072 (3).JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8072 (2).JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8072 (1).JPG]


No. CU KAZ TN 8072 - SOLD

Copper

Locality: Itauz Mine, Dzhezkazgan Oblast, Kazakhstan

Specimen Size: 3.0 x 1.1 x 1.1 cm (thumbnail)


Most people are familiar with the extraordinary Copper specimens that show amazing skeletal forms and dramatic twinning. I consider this to be one of the most significant Copper discoveries in the last 50 years, and they have already proven themselves as modern-day classics. The quality, sharpness and dramatic crystal growth have set these pieces apart from other crystallized Copper specimens around the world. This stout specimen is my favorite piece of those posted in this update showing multiple layered skeletal "Spinel"-Law twins forming an appealling "arrowhead"-shaped crystal group. The reddish patina on this specimen gives it an antique appearance, and truly stands out among many others that I've seen from this classic locality.



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Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8073 (1).JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8073.JPG]


No. Cu Kaz TN 8073 - $ 200.00

Copper

Locality: Itauz Mine, Dzhezkazgan Oblast, Kazakhstan

Specimen Size: 3.4 x 0.7 x 0.3 cm (miniature)


Most people are familiar with the extraordinary Copper specimens that show amazing skeletal forms and dramatic twinning. I consider this to be one of the most significant Copper discoveries in the last 50 years, and they have already proven themselves as modern-day classics. The quality, sharpness and dramatic crystal growth have set these pieces apart from other crystallized Copper specimens around the world. This slender thumbnail displays some rather sharp Copper crystals in a "herringbone" arrangement which are capped off by a beautiful "heart"-shaped twinned crytal at the top. The piece alternates between bright shiny Copper colored areas and a very dark grey patina which gives it great character. This is by far one of the most aesthetic Coppers that I've seen in this size for Itauz.

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Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8074 (1).JPG] Copper from Itauz Mine, Dzhezkazgan Oblast, Kazakhstan [./TNMix807and1107/CuKazTN8074.JPG]


No. Cu Kaz TN 8074 - $ 200.00

Copper

Locality: Itauz Mine, Dzhezkazgan Oblast, Kazakhstan

Specimen Size: 3.1 x 1.8 x 0.5 cm (thumbnail)


Most people are familiar with the extraordinary Copper specimens that show amazing skeletal forms and dramatic twinning. I consider this to be one of the most significant Copper discoveries in the last 50 years, and they have already proven themselves as modern-day classics. The quality, sharpness and dramatic crystal growth have set these pieces apart from other crystallized Copper specimens around the world. This is the only matrix specimen in the update and really catches one's attention. The "Spinel"-law twinned Copper crystals on this specimen are rather sharp with a bright reddish hue. The piece is truly aesthetic and it is one of the finest matrix Coppers that I've seen from this renown mine.

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Cavansite from Wagholi, (near Pune), Maharashtra State, India [./TNMix807and1107/CavTN8071 (1).JPG] Cavansite from Wagholi, (near Pune), Maharashtra State, India [./TNMix807and1107/CavTN8071 (4).JPG] Cavansite from Wagholi, (near Pune), Maharashtra State, India [./TNMix807and1107/CavTN8071 (5).JPG]


No. CAV TN 8071 - SOLD

Cavansite

Locality: Wagholi, (near Pune), Maharashtra State, India

Specimen Size: 4.2 x 3.5 x 3.3 cm (miniature)
Largest Cavansite aggregate: 2.0 cm.


Cavansite is one of my favorite "new" species of the last 30 years and one of the most beloved from the Deccan Trappe in India. The color of this species is what attracts collectors, and Cavansite from India does not receive nearly the appreciation it deserves, considering that it does not get any better from any locality. One day, more people will not take Cavansite for granted and will appreciate it for how great it truly is. This piece features a great isolated, superb, sharp, lustrous, totally crystallized, intense blue spherical aggregate of Cavansite sitting on bladed Heulandite matrix. The piece displays beautifully from either side, but like the other miniatures in this update, this piece could possibly be trimmed down to create a very attractive thumbnail. I know these specimens are rather common nowadays, but one day there won't be any more, and you'll be paying a premium to get an decent one.



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Sphalerite from Emperious vein, Commodore mine, Creede, Mineral County, Colorado [./TNMix807and1107/SphalCOTN8072 (3).JPG] Sphalerite from Emperious vein, Commodore mine, Creede, Mineral County, Colorado [./TNMix807and1107/SphalCOTN8072 (2).JPG] Sphalerite from Emperious vein, Commodore mine, Creede, Mineral County, Colorado [./TNMix807and1107/SphalCOTN8072.JPG]


No. SPHAL CO TN 8072 - SOLD

Sphalerite

Locality: Emperious vein, Commodore mine, Creede, Mineral County, Colorado

Specimen Size: 3.0 x 2.6 x 1.7 cm (thumbnail)


The Commodore mine has produced some of the most colorful and attractive Sphalerite specimens in all of Colorado, or the United States for that matter. These specimens were all over the market 30 years ago, and now they are highly prized and highly sought after by Colorado collectors. My brother has cut some of the most vivid and sparkling gemstones from broken Sphalerite crystals that came out of the Commodore and they have always sold the second he puts them out for sale. I can only think of a few world localities that produce/produced such superb gemmy Sphalerite crystals in any quantity over the last 50 years, and the specimens from Creede truly are classics. This specimen features a few dramatic, complexely crystallized/twinned, sharp, semi lustrous, greenish-golden color crystals on a mound of Galena and Chalcopyrite matrix. When the crystals are backlit, they show rich color and are clearly gemmy enough to facet superb quality gems. Do not miss out on this historic and flashy Colorado Sphalerite.



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Dolomite (GEM Twin !) with Uvite and Magnesite from Brumado mine, Bahia, Brazil [./TNMix807and1107/DolBrTN8071 (2).JPG] Dolomite (GEM Twin !) with Uvite and Magnesite from Brumado mine, Bahia, Brazil [./TNMix807and1107/DolBrTN8071 (5).JPG] Dolomite (GEM Twin !) with Uvite and Magnesite from Brumado mine, Bahia, Brazil [./TNMix807and1107/DolBrTN8071 (3).JPG] Dolomite (GEM Twin !) with Uvite and Magnesite from Brumado mine, Bahia, Brazil [./TNMix807and1107/DolBrTN8071 (7).JPG] Dolomite (GEM Twin !) with Uvite and Magnesite from Brumado mine, Bahia, Brazil [./TNMix807and1107/DolBrTN8071 (9).JPG] Dolomite (GEM Twin !) with Uvite and Magnesite from Brumado mine, Bahia, Brazil [./TNMix807and1107/DolBrTN8071 (6).JPG] Dolomite (GEM Twin !) with Uvite and Magnesite from Brumado mine, Bahia, Brazil [./TNMix807and1107/DolBrTN8071 (4).JPG]


No. DOL BR TN 8071 - SOLD

Dolomite (GEM Twin !) with Uvite and Magnesite

Locality: Brumado mine, Bahia, Brazil

Specimen Size: 2.4 x 1.5 x 1.2 cm (thumbnail)


Not that I have made it a point to devote a great deal of attention to Dolomite thumbnails I have seen over the years, but I will say that this piece is the finest Dolomite thumbnail that I have handled. I must stress that this specimen looks much better than the photos indicate, and would thrill any thumbnail collector to own it. Dolomite simply should not get this good folks. The piece features a spectacular GEM quality twinned crystal with sharp, glassy faces and an eye-catching cognac color. The Dolomite is sitting atop a very dark red tabular Uvite crystal with accenting rhombohedra of colorless Magnesite. I have seen some rather crude Dolomites from this mine over the years, and until this piece, never once did I consider even owning one of them. This is the kind of specimen that would fit into any collection because the quality transcends anything else that I have encountered from Brumado. A very impressive thumbnail of a species that most collectors do not often consider a "must have" for their collections.



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Vesuvianite from Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [./TNMix807and1107/VesTN8071 (6).JPG] Vesuvianite from Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [./TNMix807and1107/VesTN8071 (5).JPG] Vesuvianite from Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico [./TNMix807and1107/VesTN8071 (4).JPG]


No. VES TN 8071 - $ 100.00

Vesuvianite

Locality: Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico

Specimen Size: 2.5 x 2.0 x 1.4 cm (thumbnail)
Largest Vesuvianite: 7 mm.


This specimen actually hails from the same locality as the famous "Raspberry Grossulars" from about 10 years ago. This is the only thumbnail of these Vesuvianites that I have handled, and it would make a great addition to any Mexican suite, or perhaps a good reference specimen to accompany a "Raspberry Grossular" you might already own. The specimen hosts a few greenish-brown, lustrous nearly equant Vesuvianite crystals on matrix. The main crystal is doubly-terminated and very aesthetically sitting at the top of the specimen.

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Chalcopyrite with Sphalerite and Quartz from Nikolaevsky mine, Dal'negorsk, Primorskiy Kray, Russia, [./TNMix807and1107/CuFeSTN8072.JPG] Chalcopyrite with Sphalerite and Quartz from Nikolaevsky mine, Dal'negorsk, Primorskiy Kray, Russia, [./TNMix807and1107/CuFeSTN8072 (3).JPG] Chalcopyrite with Sphalerite and Quartz from Nikolaevsky mine, Dal'negorsk, Primorskiy Kray, Russia, [./TNMix807and1107/CuFeSTN8072 (2).JPG] Chalcopyrite with Sphalerite and Quartz from Nikolaevsky mine, Dal'negorsk, Primorskiy Kray, Russia, [./TNMix807and1107/CuFeSTN8072 (1).JPG]


No. CuFeS TN 8072 - $ 75.00

Chalcopyrite with Sphalerite and Quartz

Locality: Nikolaevsky mine, Dal'negorsk, Primorskiy Kray, Russia,

Specimen Size: 2.8 x 2.7 x 1.8 cm (thumbnail)


This specimen is about 10 years old and is a good full sized thumbnail for this material. It features a striking sharp Chalcopyrite crystal with matte luster which is associated with gemmy needle Quartz and black Sphalerite crystals. A very representative thumbnail of this well known material.

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Siderite from Poudrette quarry (Demix quarry), Mont Saint-Hilaire, Rouville County, Quebec, Canada [./TNMix807and1107/SidMSHTN8071.JPG] Siderite from Poudrette quarry (Demix quarry), Mont Saint-Hilaire, Rouville County, Quebec, Canada [./TNMix807and1107/SidMSHTN8071 (1).JPG] Siderite from Poudrette quarry (Demix quarry), Mont Saint-Hilaire, Rouville County, Quebec, Canada [./TNMix807and1107/SidMSHTN8071 (2).JPG]


No. SID MSH TN 8071 - SOLD

Siderite

Locality: Poudrette quarry (Demix quarry), Mont Saint-Hilaire, Rouville County, Quebec, Canada

Specimen Size: 2.2 x 2.0 x 1.8 cm (thumbnail)


A beautiful cluster of sharp, lustrous, greenish-tan Siderite rhombohedra from this famous find a few years ago. The Siderite crystals are sitting on a small pedestal of matrix making for a very nice touch. The edges of the rhombs are translucent and nearly colorless. It appears that all of the Siderite crystals are undamaged and I must say this is the best thumbnail of this material that I have seen. A superb quality specimen of this well known material.



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