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Mineral Specimens with Quartz
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15.8 x 8.8 x 8.4 cm. A very large specimen featuring beautiful crystals of the famous teal-colored "Blanchard blue" fluorite crystals, with pretty hints of purple - an unusual touch that was characteristic of this find there. The crystals measure up to 1.8 cm along the edge. One thing that makes this specimen particularly pretty is that the fluorites are isolated in patches on the stark white quartz rather than gathered in a dense mass without the quartz showing.
7.9 x 4.5 x 4.5 cm. From a find about five years ago in China, gemmy, bottle-green crystals of epidote growing on a cluster of glossy, transparent quartz crystals.
3.0 x 2.4 x 2.4 cm. A stunning small miniature or "toenail" of amethyst, showing the gemmy quality that makes these Veracruz specimens so famous. The two large crystals slant out from one another to form a perfect "V".
11.4 x 6.9 x 4.4 cm. Amazingly sharp, perfectly-formed crystals of microcline - with a fine, pale peach color. Microcline is best-known in its blue variety (amazonite) or as stark white crystals. Here, they are intergrown with smoky quartz points and small, pale clusters of microcrystalline albite.
6.5 x 2.8 x 2.8 cm. A sharp, glassy crystal of smoky quartz, actually quite transparent but just very dark, from Colorado. It has a natural contact on one of the termination faces. Ex. Richard Hauck Collection.
12.0 x 5.8 x 5.8 cm. Here is a very large, very fine and gemmy crystal of smoky quartz from the Austrian Alps. It is doubly-terminated - with a slight coating of green chlorite on one end, a common association. There are matrix contacts and some mineral attachments of massive colorless quartz and chlorite around the sides. The interior is strikingly transparent and glassy, something Alpine smokies are known for. Ex. Wein Collection.
6.5 x 1.8 x 1.8 cm, 5.8 x 3.8 x 2.8 cm. Two very different, very fine specimens of quartz from Brandberg. One is a fantastic sceptre, very clear, standing up off a delicate "shell" of matrix, surrounded by smaller crystals. The other is a compound floater crystal that splits into a multiply-terminated fishtail at one end. Ex. Charlie Key Collection.
13.4 x 12.8 x 8.8 cm. This is a very large cluster of big crystal-covered stalactites of quartz, from India. They are all complete and uncontacted. And, as you can see, the overall aesthetics of the specimen is wonderful and really impressive for its size and form.
6.3 x 2.6 x 1.8 cm. This is a rare (from the Alps) quartz sceptre, with the sceptering appearing as a series of steppes or terraces widening out towards the termination. The crystal divides into multiple terminations at the other end, one of which is complete. Ex. Wein Collection.
6.1 x 2.6 x 2.6 cm. A classic, old-time smoky quartz crystal from the St. Gotthard Massif of Switzerland and the Richard Hauck Collection. This sharp, transparent smoky quartz has complex faces and several faces are very interestingly, preferentially frosted with chlorite.
4.5 x 3.8 x 3.1 cm. A superb combination piece from the Himalaya Mine and the Marty Zinn Collection. The gorgeous, gemmy and lustrous, 3.2 cm, polychrome tourmaline is beautifully set in the side of a pristine, complete all-around, doubly terminated, glassy, smoky quartz crystal. A tiny, purple lepidolite is a super accent. The striking tourmaline grades from cranberry-red to classic, watermelon-pink and there is even a narrow, green zone at the other termination. The pinacoidal termination is pristine. Several of the faces on the smoky quartz are contacted and lightly frosted.
8.9 x 5.3 x 3.8 cm. Excellent, large and discrete stannite crystals are richly and aesthetically attached to the topside of a glassy, nearly transparent, complete all-around, doubly terminated quartz crystal from the Yaogangxian Mine of China. The lustrous, bronze-metallic stannite crystals reach 8 mm on this striking specimen, which is nicely accented by the sidecar quartz crystals. These are outstanding large and discrete stannite crystals, seldom seen in this quality and in such beautiful combination with quartz. The large, doubly-terminated quartz is pristine.
5.7 x 4.3 x 4.3 cm. A fine and classic, polychrome tourmaline crystal cluster from Stak Nala, Pakistan. The tourmalines have gorgeous, highly desirable, gemmy pink tips grading downward to black to gemmy green and blue, at the base. The large crystal is partially doubly terminated. The rest of the base is contacted by cleavelandite. The tourmaline cluster is aesthetically wrapped in bladed cleavelandite and nicely accented with a couple of glassy, colorless, sharply terminated quartz crystals. Excellent, older material from the 1980s finds.
6.7 x 5.2 x 3.3 cm. A fine, classic and old-time specimen from the Wheal Gorland of Cornwall. A "nest" of very sparkly, dark forest-green, botryoidal, olivenite microcrystals is surrounded and "protected" by botryoidal, radial sprays of lighter green olivenite crystals on a quartz-rich matrix. Primary production at Wheal Gorland was over by 1851. Ex. Brent Lockhart Collection.
7.5 x 4.9 x 3.4 cm. A beautiful and aesthetic cluster of glassy and sharp, water-clear, smoky quartz crystals on matrix from the Goscheneralp of Switzerland. The large crystal is 3.2 cm. Classic material from this vey well-known locale. Ex. Brent Lockhart Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Fluorite, Quartz from Blanchard Mine (Portalas-Blanchard Mine), Bingham, Hansonburg District, Socorro Co., New Mexico, USA [db_pics/mdpics/MD-207241a.jpg]](db_pics/mdpics/MD-207241a.jpg)
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