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Mineral Specimens with Tellurium
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This is a miniature sized specimen rich with perhaps a dozen sub-mm crystals , eye visible, scattered all over it. On one side are two larger crystals which are just over 1 mm (perhaps 1.5 mm), bright and sharp, and possibly twinned. VERY NICE reference specimen with eye-visible crystals!
several very small, sub-mm crystals are scattered sparsely about and a good micromount could be made! nice reference specimen for the micro collector
several very small, sub-mm crystals are scattered sparsely about. One approaches 1 mm in size. Perfect reference specimen for that regard. The back is cut and semi-polished, revealing rich and attractive veins of tellurium
One almost 1-mm crystal, eye-visible and sharp, and a host of tinier ones sparkle on this matrix.
several very small, sub-mm crystals are scattered sparsely about and a good micromount could be made! nice reference specimen for the micro collector
This is a miniature sized specimen rich with perhaps 2 dozen sub-mm crystals , eye visible, scattered all over it. On the nice, crystallized quartz of the display face are two larger crystals which are almost 2 mm in size, bright and sharp, and possibly twinned. VERY NICE display-quality specimen with eye-visible crystals! The back is cut and semi-polished, revealing rich and attractive veins of tellurium
On the nice, crystallized quartz of the display face are two larger crystals which are almost 2 mm in size, bright and sharp, and possibly twinned. This is a display-sized specimen rich with perhaps 20 sub-mm crystals that are smaller, but still eye visible and very sparkly so the appearance of the piece as a whole is quite rich, scattered all over it. The back is cut and semi-polished, revealing rich and attractive veins of tellurium
ex. American Museum of Natural History
A very metallic, bright specimen showing lathe-shaped crystals of tellurium admixed with sparkling rickardite in microcrystals around it. Rickardite is a SUPER RARE copper telluride, first discovered here in the early 1900s. This specimen, formerly #17583 in the AMNH collection, surely dates to those early days. It comes with an AMNH label showing it was a gift from an FJ Arkins (I do not know of him). Good Hope Mine, Vulcan District, Gunnison Co., Colorado is the TYPE LOCALE. Ex AMNH exchanged into the collection of dealer/collector Lawrence Conklin.
2.2 x 1.9 x 1.6 cm. Native tellurium is a RARE element and to find it well-crystallized is RARER still. This excellent thumbnail is RICHLY covered with bright tellurium microcrystals in quartz matrix from the Type Locality - Facebánya, Romania. CHOICE material from the Carl Davis Collection.
3.7 x 3.3 x 1.7 cm. A rare silver telluride! This specimen is composed of a really rich coating of surface-laying, splendent, metallic-gray crystals of stutzite upon the typical Moctezuma mine matrix enriched in native tellurium. Additionally, there may be tetradymite present as well: three very rare species, all having tellurium in their formula.
5.7 x 4.1 x 2.1 cm. This is an extremely rich specimen of native tellurium, in metallic-bright needles or as sparkly microcrystals on a bit of baryte, from an uncommon Japanese locality - the Teine Mine on Hokkaido Island. Ex. John Ydren Collection.
3.2 x 2.4 x 0.9 cm. Native tellurium is an uncommon element. The matrix on this old-time specimen is richly covered with lustrous, tin-white tellurium plates and hails from the Burro Mountains District, Grant Co., New Mexico. Accompanied by an old, faded Ward’s label. The collection this came out of was a museum stash dating to prior to World War I.
5.5 x 3.7 x 1.5 cm (pillbox). An old-time specimen of 7-9 grains of native tellurium in an antique packaging. The tellurium grains are in a 2.9 cm, cotton-stoppered, broken glass test tube. The test tube is in a matchbox-like, laxative pillbox that says: New Labeling Adopted 1939. An old handwritten label, along with a faded English label is included in the box. I believe this classic material is from the type locality of Facebanya, not Felsobanya (Baia Sprie) as the more modern labels indicate. I think that the old label showing Facebanja was mistaken for the same as Felsobanya. Offenbanya is an old, historic telluride district, while Felsobanya, according to Mindat, does not include native tellurium. Facebanja, however, surely did...first. Ex. Dennis Mullane Collection via the Kessler collection of ores and sulfides which had been purchased in the 1970s.
4.2 x 2.8 x 2.4 cm. A very rich, well-placed vein of bright, native tellurium crystals in quartz matrix from the Moctezuma Mine of Mexico. The crystals reach 5 mm on this showy, rich ore specimen. Older material. Ex. Mullane Collection.
3.6 x 3.5 x 2.0 cm. Paratellurite is a very rare species and this rich and showy ore specimen is from the Co-type Locality - the Moctezuma Mine of Sonora, Mexico. This gold-tellurium mine is renowned for its wealth of secondary tellurium minerals. Pastel-yellow microcrystals and crusts of paratellurite richly cover both sides of the quartz-rich matrix. A rich concentration of sparkly, silver-gray native tellurium microcrystals covers one end of this fine old-time piece from the Mullane Collection.
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Rob Lavinsky, rob@irocks.com
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