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4MB33 - STANNITE on ZINKENITE - $ 95 SOLD SAN JOSE MINE, ORURO, BOLIVIA thumbnail, 1.6 X 1.5 X 1.5 cm
Cluster of crystals to 1 cm demonstrating a highly modified habit with an attractive patina, perched on striated zinkenite xls. A very good specimen for the species.
MD-114130 - Stannite, Quartz, Fluorite - - Archived Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China small cabinet, 6.7 x 5.6 x 3.3 cm.
6.7 x 5.6 x 3.3 cm. A MAJOR and showy stannite specimen richly covered with lustrous, discrete crystals and nicely complimented by water-clear quartz crystals and even a 1.0 cm fluorite cube.
MD-118285 - Stannite - - Archived San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia miniature, 3.2 x 2.8 x 2.5 cm.
3.2 x 2.8 x 2.5 cm. These specimens came out of this mine two years ago and are among some of my favorite "new finds" from Bolivia. This piece features some VERY large, lustrous, dark silvery brass colored, twinned crystals of the rare copper iron tin sulfide Stannite. The Stannite crystals are virtually as large as individual crystals of Stannite get from any locality in Bolivia. There were only a handful of these specimens, and for my money, they are superior to most Stannite from China because the Chinese crystals are sometimes composite crystal groups consisting of many smaller crystals to form a larger aggregate, and nowhere else besides this find have I ever seen twinned Stannite crystals like these. This is a very choice specimen and a great quality "toenail" for what it is. These are some of the largest crystals of this species I’ve seen from Bolivia.
MD-118804 - Stannite, Quartz, Fluorite - - Archived Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China small cabinet, 6.7 x 5.6 x 3.3 cm.
Stannite is a rare sulfide of copper, iron and tin. It is collected mainly in not very pretty specimens, as simply a rare and desirable mineral - but on uncommon occasions, you find a specimen that is actually aesthetic as well, like this one. There is a LOT of stannite here, as well as sparing light purple fluorite. But what makes this specimen so good is that the stannite has grown towards the bottom of an elegant, translucent, complete and terminated quartz crystal.
MD-119115 - Wolframite, Stannite, Arsenopyrite - - Archived Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China small cabinet, 8.6 x 4 x 2 cm.
8.6 x 4 x 2 cm. Lustrous doubly-terminated bladed crystal of Wolframite with a cluster of Stannite and Arsenopyrite crystals near the base of one side. The Wolframite has a luster that ranges from good to superb, and there are some areas of incomplete growth (contacts of some dings??) along some edges and one termination. The Stannite and Arsenopyrite have superb metallic luster, and excellent crystal form. They range up to .7 cm in size. Ex. Steve Smale Collection.
MD-119403 - Stannite - - Archived San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia thumbnail, 3.1 x 3.0 x 2.5 cm.
3.1 x 3.0 x 2.5 cm. This piece features some VERY large, lustrous, dark silvery brass colored, twinned crystals of the rare copper iron tin sulfide Stannite. The Stannite crystals are virtually as large as individual crystals of Stannite get from any locality in Bolivia. A final touch to these crystals is the fact that they have a minor association silvery colored Andorite crystals growing on top of the Stannites!
MD-131114 - Stannite - - Archived San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia thumbnail, 2.7 x 2.3 x 1.7 cm.
2.7 x 2.3 x 1.7 cm. These specimens came out of this mine last year and are among some of my favorite "new finds" from Bolivia. This piece features some VERY large, semi lustrous, sharp, dark "brass" colored, twinned crystals of the rare copper iron tin sulfide Stannite. The Stannite crystals are virtually as large as individual crystals of Stannite get from any locality in Bolivia. There were only a handful of these specimens, and for my money, they are superior to most Stannite from China because the Chinese crystals are sometimes composite crystal groups consisting of many smaller crystals to form a larger aggregate, and nowhere else besides this find have I ever seen twinned Stannite crystals like these. This is a very choice specimen and a great quality "thumbnail" for what it is. These are some of the largest crystals of this species I’ve seen from Bolivia.
MD-146082 - Stannite, Andorite - - Archived Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosí Department, Bolivia thumbnail, 2.4 x 1.5 x 1.5 cm.
2.4 x 1.5 x 1.5 cm. A superb and aesthetic sulfide combination thumbnail specimen from the famous Siglo XX Mine at Llallagua, Bolivia. A sharp, lustrous, doubly terminated stannite crystal is jauntily perched upright on the side of a plate of sloping, lustrous, dark gray, acicular andorite crystals. Another stannite crystal is hidden below the andorite plate. Ex. Ed Ruggiero Collection, who purchased this piece from Pala Properties in 1975. This was and is an outstanding thumbnail for the two species.
MD-146668 - Stannite, Jamesonite - - Archived San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia miniature, 4.3 x 3.3 x 2.7 cm.
4.3 x 3.3 x 2.7 cm. These specimens came out about two years ago, and until recently, their identity wasn’t known for sure. From the beginning they were speculated as being Stannite with Jamesonite, and that’s what they turned out to be. Most people who are fans of Bolivian minerals are probably familiar with the classic Stannite and Zinkenite association specimens from San Jose that were found circa WWII, but these new specimens are much more rare, and are the only association of Stannite with Jamesonite, that I have seen from any locality. The specimen features several sharp, twinned crystals of Stannite measuring up to 1.1 cm sitting atop and mixed with a matrix of acicular Jamesonite crystals and are associated with minor Andorite crystals. This piece is one of the better pieces of this rare and unusual combination of these two species. Stannite is copper iron tin sulfide and some of the best pieces of this material come from this mine. This is a very choice specimen of a hard to find association from Bolivia! A very unique specimen for these rare minerals. Ex. Brian Kosnar Collection.
MD-152217 - Zinkenite, Stannite, Andorite - - Archived San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia small cabinet, 5.7 x 3.2 x 2.2 cm.
5.7 x 3.2 x 2.2 cm. These specimens came out of this mine two years ago, and are among some of my favorite "new finds" from Bolivia. This piece features a good sized, sharp, very dark silvery "brass" colored, twinned crystal of the rare copper iron tin sulfide Stannite with is associated with a greyish-brown color tabular crystal of Andorite on prismatic grey Zinkenite matrix. There were only a handful of these specimens, and for my money, they are superior to most Stannite from China because the Chinese crystals are sometimes composite crystal groups consisting of many smaller crystals to form a larger aggregate, and nowhere else besides this find have I ever seen twinned Stannite crystals like these. To find these specimens on matrix is next to impossible, as well over 95% of them were floaters off matrix. This is a very choice specimen and a great quality piece for what it is. Ex. Brian Kosnar.
MD-156176 - Stannite, Arsenopyrite - - Archived Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China miniature, 3.4 x 2.7 x 2.2 cm.
3.4 x 2.7 x 2.2 cm. A showy and uncommonly fine Chinese combination specimen of a SUPER, 1.4 cm, ball-like cluster of bright, metallic-gray stannite crystals attractively attached to a brassy, highly lustrous and striated arsenopyrite crystal. Four more smaller stannite balls are an outstanding compliment. The stannites show individual faces instead of the usual jumble you see from here, and this mine has produced the best in the world recently I would say. These are REALLY GOOD stannite crystals.
MD-165244 - Stannite - - Archived Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China miniature, 3.5 x 2.5 x 1.6 cm.
3.5 x 2.5 x 1.6 cm. An EXCELLENT and showy cluster of lustrous, stepped, steel-gray stannite crystals from the famed Yaogangxian Mine of China. These are outstanding, large stannite crystals to 1.8 cm. Stannites of this quality from the Yaogangxian Mine have redefined the species.
MD-167097 - Stannite - - Archived San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia thumbnail, 2.6 x 2.5 x 1.8 cm.
2.6 x 2.5 x 1.8 cm. These specimens came out of this mine in 2005 and are among some of my favorite "new finds" from Bolivia. This piece features some VERY large, semi lustrous, sharp, dark "brass" colored, twinned crystals of the rare copper iron tin sulfide Stannite. The Stannite crystals are virtually as large as individual crystals of Stannite get from any locality in Bolivia. Ex. Brian Kosnar.
MD-168836 - Stannite, Arsenopyrite, Quartz - - Archived Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China small cabinet, 5.3 x 5.2 x 3.7 cm.
5.3 x 5.2 x 3.7 cm. A very sharp miniature featuring a cluster of sulfides about its center, lapping up against a gemmy quartz point. The arsenopyrite is on the left, the stannite on the right, in crystals to just over 1 cm. Ex. Martin Zinn Collection.
MD-168837 - Stannite, Chalcopyrite, Quartz - - Archived Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China small cabinet, 5.2 x 5.0 x 4.7 cm.
5.2 x 5.0 x 4.7 cm. A brilliantly lustrous ball of stepped stannite crystals, flanked by splaying GEM quartzes at its upper edge, makes this a really outstanding stannite specimen. Usually they are kind alumpy and although great for the species, not much to look at overall. THIS ONE is very aesthetic, though; as well as significant for the rare mineral displayed. The flanking quartzes and golden chalcopyrite to either side simply makes this piece more unique and special than the crowd. Ex. Dr. Steve Smale Collection.
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