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Rare Bolivian Phosphate Specimens


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Vauxite with Paravauxite and Metavauxite (Very rare association) (Double-sided specimen) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxBol5071.JPG] Vauxite with Paravauxite and Metavauxite (Very rare association) (Double-sided specimen) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxBol5071 (1).JPG] Vauxite with Paravauxite and Metavauxite (Very rare association) (Double-sided specimen) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxBol5071z.jpg] Vauxite with Paravauxite and Metavauxite (Very rare association) (Double-sided specimen) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxBol5071y.jpg]


No. VAUX BOL 5071 - $ 775.00 DISCOUNTED OVER 20.00% OFF TO $ 600.00

Vauxite with Paravauxite and Metavauxite (Very rare association) (Double-sided specimen)

Locality: San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia.

Specimen Size: 10.4 x 8.7 x 2.3 cm (cabinet)


From the new find of 2006, this is undoubtedly one of the most significant and momentous discoveries ever made at this locality in the last 20 years. Not since the days of World War II has there been such a remarkable find of this material. These are simply put, some of the largest overall Vauxite specimens in the world, but the greatest aspect of these pieces is two-fold. First, the majority of the specimens feature four phosphate species which is incredibly rare. The second significant attribute of these specimens is the fact that they formed on a solid Quartz-Diorite porphyry rock matrix, and not crumbly clay (after decomposed Allophane) which means that they are much sturdier than previous Vauxite specimens, so the pieces can be handled and displayed with ease. Now you must note that despite the sturdy matrix, the crystals themselves are somewhat brittle and still must be handled with care. This specimen features excellent, medium blue color, radiating addgregates of Vauxite associated with micro fibrous "strands" of the super rare phosphate Metavauxite, plus tabular micro crystals of Paravauxite and small whitish spheres of Wavellite which means that this piece is a dream for phosphate collectors. I have photographed the tiny crystals under the microscope to show how delicate and attractive they truly are. There are also some fine quality Quartz crystals on this specimen, which is really a nice touch to this already amazing piece. Lastly, there is one isolated Pyrite cube on the specimen, so you've got six species on a single piece. To top it all off, the specimen is crystallized on both sides meaning that it was a protruding "rib" in the pocket. This is a MAJOR find of these incredibly rare minerals, the likes of which I've never seen from Bolivia, and will more than likely never see again. This piece is from the TYPE LOCALITY for Vauxite, Paravauxite and Metavauxite which were first discovered along the Contacto and San Jose veins in this mine and were first described by Sam Gordon and Mark Bandy.

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Vauxite with Paravauxite, Metavauxite and Franckeite (ultra rare association) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxFranBol5071 (1).JPG] Vauxite with Paravauxite, Metavauxite and Franckeite (ultra rare association) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxFranBol5071 (4).JPG] Vauxite with Paravauxite, Metavauxite and Franckeite (ultra rare association) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxFranBol5071y.jpg] Vauxite with Paravauxite, Metavauxite and Franckeite (ultra rare association) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxFranBol5071 (3).JPG] Vauxite with Paravauxite, Metavauxite and Franckeite (ultra rare association) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxFranBol5071w.jpg] Vauxite with Paravauxite, Metavauxite and Franckeite (ultra rare association) from San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/VauxFranBol5071u.jpg]


No. VAUX FRANK BOL 5071 - $ 1275.00 DISCOUNTED OVER 30.00% OFF TO $ 875.00

Vauxite with Paravauxite, Metavauxite and Franckeite (ultra rare association)

Locality: San Jose vein, Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia.

Specimen Size: 15.6 x 11.9 x 3.6 cm (large cabinet)
Largest Franckeite Sphere: 7.0 mm.


From the new find of 2006, this is undoubtedly one of the most significant and momentous discoveries ever made at this locality in the last 20 years. Not since the days of World War II has there been such a remarkable find of this material. These are simply put, some of the largest overall Vauxite specimens in the world, but the greatest aspect of these pieces is two-fold. First, the majority of the specimens feature four phosphate species which is incredibly rare. The second significant attribute of these specimens is the fact that they formed on a solid Quartz-Diorite porphyry rock matrix, and not crumbly clay (after decomposed Allophane) which means that they are much sturdier than previous Vauxite specimens, so the pieces can be handled and displayed with ease. Now you must note that despite the sturdy matrix, the crystals themselves are somewhat brittle and still must be handled with care. This specimen features excellent, medium blue color, radiating addgregates of Vauxite associated with micro fibrous "strands" of the super rare phosphate Metavauxite, plus tabular micro crystals of Paravauxite and small whitish spheres of Wavellite which means that this piece is a dream for phosphate collectors, but the most significant aspect of this specimen is the fact that it is associated with silvery blades and spherical aggregates of the ultra rare sulfosalt, Franckeite !! There were only a handful of these specimens associated with Franckeite, and this one is by far the biggest and the best. I have photographed the tiny crystals under the microscope to show how delicate and attractive they truly are. There are also some fine quality Quartz crystals on this specimen, which is really a nice touch to this already amazing piece. So you've got six species on a single specimen, which is not very commong for Bolivian minerals. Franckeite is not found associated many colorful species (usually it is found in association with other sulfides and sulfosalts), and this is the ONLY locality in the world where you will find Franckeite associated with any of the "Vauxite" species, let alone all three of them !! This is a MAJOR find of these incredibly rare minerals, the likes of which I've never seen from Bolivia, and will more than likely never see again. This piece is from the TYPE LOCALITY for Vauxite, Paravauxite and Metavauxite which were first discovered along the Contacto and San Jose veins in this mine and were first described by Sam Gordon and Mark Bandy. A remarkably rare association specimen from this storied locality.

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Quartz (variety Quartz (variety Quartz (variety


No. AMETH BOL 5071 - SOLD

Quartz (variety "Amethyst") on Calcite

Locality: Bombori, Potosi Department, Bolivia

Specimen Size: 10.4 x 8.7 x 2.3 cm (cabinet)
Largest crystal: 1.8 cm. long


Bolivia is not necessarily known for producing colorful species, let alone gem crystals. This discovery of Amethyst in the Potosi district of Bolivia has produced some superb quality, though not widely known specimens from an uncommon "Alpine type" deposit. This specimen is a great cabinet size piece consisting of sharp, GEM/gemmy, highly lustrous, purple, scepter and simple prismatic crystals of Amethyst associated with gemmy, white/colorless, modified scalenohedra of Calcite with underlain forest-green color "Chlorite" on matrix. These crystals are superb quality, and I'm certain that many Quartz collectors do not have one of these in their collections. For Bolivia, this is a very unique discovery, so don't dismiss this specimen as simply "another Amethyst". Do not miss out on this opportunity because these specimens came out quickly and disappeared quickly, which sometimes can lead one to believe that this might have been a one time find.



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Paravauxite with Sigloite from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia [./BolMix507and707/ParavBol5071.JPG] Paravauxite with Sigloite from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia [./BolMix507and707/ParavBol5071 (3).JPG] Paravauxite with Sigloite from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia [./BolMix507and707/ParavBol5071 (2).JPG] Paravauxite with Sigloite from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia [./BolMix507and707/ParavBol5071 (1).JPG]


No. PARAV BOL 5071 - $ 50.00 SOLD

Paravauxite with Sigloite

Locality: Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia

Specimen Size: 2.5 x 2.1 x 1.2 cm (thumbnail)
Largest crystal: 1.8 cm. long


These crystals are some of the most beautiful phosphates in the world. They are highly prized for their rarity and beauty. This particular piece features superb, good sized, incredibly rare, sharp, lustrous, parallel growths of light green crystals of Paravauxite associated with tan colored crystals of Sigloite crystals covering minor iron-stained, micro Wavellite on matrix. Sigloite forms as the result of the alteration of Paravauxite. The piece is from the type locality for both species ! Mark Chance Bandy described Paravauxite crystals in his book "Mineralogy of Llallagua, Bolivia". He states that "Paravauxite is the most abundant of all the 'Vauxites' from this mine," and with that said, you almost never see specimens available on the market, and it is virtually unheard of to see both Paravauxite and Sigolite together. This piece is a great example of the prismatic, sheaf-like parallel growths that Mr. Bandy described. It is a good quality, full size thumbnail specimen which is not easy to find as most thumbnails from this locality are either badly damaged or host very small crystals.

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Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5071.JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5071 (7).JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5071 (10).JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5071 (2).JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5071 (9).JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5071 (6).JPG]


No. MON BOL 5071 - SOLD

Monazite-(Ce)

Locality: Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia.

Specimen Size: 6.5 x 4.8 x 3.1 cm (small cabinet)


Monazite gets its name from the Greek word "monazein", which means "to be alone", in allusion to its isolated crystals and their rarity when first found. Here we have an excellent specimen consisting of very well crystallized, ridiculously rare, sharp, small, lustrous, gemmy, twinned and single crystals of orange-pink Monazite-(Ce) in a gemmy Quartz-lined vug on matrix. There are a few more Monazite crystals outside of the vug, but the best crystals are definitely inside. I've photographed the crystals under the microscope to better depict the excellent form and ostensible beauty. Monazite-(Ce) is usually found in granitic pegmatites, but these crystals are found in hydrothermal tin veins where there is an absolute absence of Thorium (usually a trace element in Monazite). It is very difficult to obtain any specimens of this incredibly beautiful and rare phosphate, especially in gemmy crystals like those exhibited on this specimen. This piece is from the same mine where similar material was discovered along the Contacto and San Jose veins, and first described by Sam Gordon and Mark Bandy over 50 years ago. It is unbelievably rare to find top quality matrix specimens of Monazite-(Ce) from any locality in Bolivia or anywhere else in the world. Monazite-(Ce) from most localities is dark and opaque and rarely bright and gemmy like the crystals on this specimen. Lastly, these crystals exhibit a color change effect showing a fine orange-pink color in some lighting, i.e., sunlight and switch to virtually colorless in fluorescent lighting.



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Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5072.JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5072z.jpg] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5072 (7).JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5072 (1).JPG] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5072y.jpg] Monazite-(Ce) from Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia. [./BolMix507and707/MonBol5072 (2).JPG]


No. MON BOL 5072 - $ 450.00 DISCOUNTED OVER 65.00% OFF TO $ 150.00

Monazite-(Ce)

Locality: Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia.

Specimen Size: 9.0 x 5.2 x 5.0 cm (small cabinet)


Monazite gets its name from the Greek word "monazein", which means "to be alone", in allusion to its isolated crystals and their rarity when first found. Here we have a superb specimen consisting of very well crystallized, ridiculously rare, sharp, small, lustrous, gemmy, twinned and single crystals of orange-pink Monazite-(Ce) in a gemmy Quartz-lined vug on matrix. There are a few more Monazite crystals outside of the vug, and the reverse side of the piece has a small association of spherical, cream-colored Wavellite with the Monazite crystals as well. I've photographed the crystals under the microscope to better depict the excellent form and ostensible beauty. Monazite-(Ce) is usually found in granitic pegmatites, but these crystals are found in hydrothermal tin veins where there is an absolute absence of Thorium (usually a trace element in Monazite). It is very difficult to obtain any specimens of this incredibly beautiful and rare phosphate, especially in gemmy crystals like those exhibited on this specimen. This piece is from the same mine where similar material was discovered along the Contacto and San Jose veins, and first described by Sam Gordon and Mark Bandy over 50 years ago. It is unbelievably rare to find superb quality matrix specimens of Monazite-(Ce) from any locality in Bolivia or anywhere else in the world. Monazite-(Ce) from most localities is dark and opaque and rarely bright and gemmy like the crystals on this specimen. Lastly, these crystals exhibit a color change effect showing a fine orange-pink color in some lighting, i.e., sunlight and switch to virtually colorless in fluorescent lighting.



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Boracite from Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia [./BolMix507and707/BorBol5071.JPG] Boracite from Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia [./BolMix507and707/BorBol5071 (2).JPG] Boracite from Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia [./BolMix507and707/BorBol5071 (1).JPG]


No. BOR BOL 5071 - $ 75.00 SOLD

Boracite

Locality: Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia

Specimen Size: 1.9 x 1.9 x 1.2 cm (thumbnail)
Boracite crystal: 0.6 cm.


The locality at Alto Chapare is probably best known for its unique "blue" Danburite specimens, but one of the other celebrated species from this locality is Boracite. Perhaps some of the most well known Boracite crystals in the world are found at Bernburg in Germany, but despite the fine quality, they are typically small. The Boracite crystals from Chapare reach a few centimeters on an edge, while still exhibiting sharp faces and adequate translucency. Boracites from Chapare are often more blue in color as opposed to greener hued crystals from Germany. This piece hosts a lovely cubic crystal of Boracite with well defined faces and a matte luster on an altered sedimentary rock matrix. It is a good quality Boracite crystal for this locality, and matrix specimens are exceptionally scarce, as most crystals tend to fall off the sometimes unstable matrix. I will point out that the crystal on this specimen is secure and well embedded into the matrix. I have been chasing after these specimens for years, and they have been exceedingly diffiicult to obtain, so I cannot promise that I will have more of them in the future.

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Boracite from Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia [./BolMix507and707/BorBol5072 (3).JPG] Boracite from Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia [./BolMix507and707/BorBol5072 (1).JPG] Boracite from Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia [./BolMix507and707/BorBol5072 (2).JPG]


No. BOR BOL 5072 - $ 250.00

Boracite

Locality: Alto Chapare District, Chapare Province, Cochabamba Department, Bolivia

Specimen Size: 3.0 x 2.5 x 2.0 cm (thumbnail)
Boracite Crystal: 2.4 cm.


The locality at Alto Chapare is probably best known for its unique "blue" Danburite specimens, but one of the other celebrated species from this locality is Boracite. Perhaps some of the most well known Boracite crystals in the world are found at Bernburg in Germany, but despite the fine quality, they are typically small. The Boracite crystals from Chapare reach a few centimeters on an edge, while still exhibiting sharp faces and adequate translucency. Boracites from Chapare are often more blue in color as opposed to greener hued crystals from Germany. This piece hosts a rather large cubic crystal of Boracite with well defined faces and a matte luster on an altered sedimentary rock matrix. The crystal is contacted on one side, but a Boracite crystal this size from any locality is significant, regardless of any impairment. It is still a good quality Boracite crystal for this locality, and matrix specimens are exceptionally scarce, as most crystals tend to fall off the sometimes unstable matrix. I will point out that the crystal on this specimen is secure and well embedded into the matrix. I have been chasing after these specimens for years, and they have been exceedingly diffiicult to obtain, so I cannot promise that I will have more of them in the future.

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Ludlamite from Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia. [./BolMix507and707/LudBol5071.JPG] Ludlamite from Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia. [./BolMix507and707/LudBol5071 (6).JPG] Ludlamite from Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia. [./BolMix507and707/LudBol5071 (3).JPG] Ludlamite from Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia. [./BolMix507and707/LudBol5071 (2).JPG]


No. LUD BOL 5071 - $ 575.00 SOLD

Ludlamite

Locality: Huanuni mine, Huanuni, Dalence Province, Oruro Department, Bolivia.

Specimen Size: 4.0 x 2.7 x 1.2 cm (miniature)
Ludlamite crystal group: 2.1 cm.


The great mine at Huanuni is one of the most interesting sights to see in the Bolivian mining landscape. This mine is known for its unique prismatic and "drillbit" twinned Cassiterite crystals, along with various phosphates, sulfides and assorted species. This piece is a magnificent miniature size display specimen of this rare iron phosphate consisting of a wonderful, sharp, lustrous, gemmy, rich green, layered, doubly-terminated crystal group of Ludlamite aesthetically perched upon gemmy, golden scalenohedral Siderite crystals which are sitting upon cubic Pyrite matrix. The piece is crystallized on both sides. This is one of the more unique and attractive Ludlamite specimens that I have offered in years. This piece actually comes from my father's personal collection, and is one of the best pieces in this size that he kept. There are truly about 7 localities in the world the produce fine crystallized Ludlamite specimens. All of these localities, except for Huanuni and now defunct, and Huanuni is not even producing specimens since it has been overtaken by COMIBOL which does not permit miners to collect and remove specimens. PLEASE NOTE: There have been no more of these specimens found in the last 6 years from Huanuni, and it is a possibility there will never be any more, so don't miss out on a very good quality piece from a classic Bolivian locality!

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