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Mineral Specimens with Quartz
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2.9 x 2.5 x 2.3 cm. A fine hemispherical cluster of large, lustrous, stepped-faced stannite crystals from recent finds at the Yaogangxian Mine of China. Stannite is a rare copper, iron, zinc, tin sulfide that in recent years has turned up in Bolivia (Potosi), as well as at Yaogangxian. The rich sprinkling of micro quartz crystals is a very nice accent.
8.0 x 6.3 x 4.4 cm. A fine, 5.8 cm fluorite ball "egg yolk" set on an "egg white" matrix of glassy quartz crystals from recent finds at Mahodari, India.
5.6 x 5.2 x 2.5 cm. The purple color saturation and intensity is excellent on this amethyst plate from the deposits at Thunder Bay, Canada. The crystals are highly lustrous and translucent and the hematite "freckles" are a nice accent to this outstanding small cabinet specimen.
13.8 x 11.8 x 9.5 cm. An old-time, fine cabinet quartz specimen from a classic Connecticut locale - the Lantern Hill Quarry in North Stonington. This is a dramatic, jackstraw cluster of large, lustrous, milky quartz crystals, which have a preferential overgrowth of smaller, second generation quartz crystals on the backside. The Lantern Hill Quarry opened in the 1870s. Ex. Richard Hauck Collection.
5.9 x 1.6 x 1.4 cm. A striking, really interesting, doubly terminated amethyst scepter from the Goboboseb Mountains of Namibia. The large, doubly terminated amethyst crystal is glassy, transparent and has vivid purple color zoning. Several of the crystal faces have skeletal features. Ex. Rob Smith Collection.
4.5 x 3.9 x 2.9 cm. A beautiful tourmaline and quartz specimen from Peech, Afghanistan. Three gemmy and lustrous pastel-pink to pastel-green to teal-blue tourmalines to 3.5 cm are perched on the side of a sharp, pristine, complete all-around quartz crystal with frosted and skeletal termination faces.
10.5 x 5.8 x 5.5 cm. Gemmy and lustrous orange spessartine garnets cover the undulating surface of the feldspar matrix on this cabinet specimen from recent finds at Tongbei, China. This fine piece is very nicely accented with a couple of smoky quartz crystals, including a prominent, 1.2 cm "spire" and features a much larger than normal spessartine at 1.7 cm.
A totally transparent, showy quartz crystal fragment with polished front faces, that is filled with highly lustrous golden rutile needles. 7.0 x 6.0 x 1.8 cm
7.8 x 6.8 x 6.4 cm. A beautiful two-sided, mounded amethyst specimen. Glassy, translucent to transparent, purple "spires" of amethyst to 6.6 cm in size stand upright on the matrix. The crystals really sparkle and are called "cactus quartz" for their form. The terminations are isolated, while the bodies have a prickly, "cactus" look with an overgrowth of smaller crystals. This is the true source for the amethystine quartz crystals (aka "cactus quartz" and "spirit quartz") erroneously marketed as being from the Magaliesberg Range.
4.0 x 2.4 x 1.4 cm. A fine amethyst scepter from Piedra Parada and the Jaime Bird Collection. The amethyst scepter looks like a purple flower bud on top of the water-clear, quartz crystal "stalk". The epidote "ground" and the glassy, doubly terminated quartz crystal are outstanding accents to this very aesthetic specimen.
A lustrous 4-cm ferberite crystal, terminated and complete all around, standing up on its edge on the matrix, with a quartz crystal growing right up through it, forming a bridge with a larger quartz crystal! Really dramatic form, a beautiful specimen overall - not something you see with many ferberite specimens. 9.2 x 6.5 x 3.8 cm
A relatively large plate of fine, sharp, lustrous smokies surrounded by little gemmy spessartines that are isolated and peppering the specimen with bright orange-red color. 15.3 x 6.8 x 5.1 cm
A superb mini of chalcopyrite, with an absolutely PERFECT, textbook 1.2-cm crystal, that is sitting up on the matrix of pretty quartz crystals, exposed all around and very 3-dimensional. Could be trimmed to a competition-quality thumbnail! 4.3 x 3.8 x 6.3 cm
An exquisite mini with long, slender, elegant quartz crystals jutting from a contrasting sphalerite matrix accented with super-bright pyrite cubes, 4.7 x 4 x 3.1 cm
These are BIG, bright, lustrous spessartines, to a centimeter across, not the wimpy little ones you see more often! They are intermixed with smoky quartz points. 6.9 x 6 x 3.6 cm
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Rob Lavinsky, rob@irocks.com
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share specimen![Stannite, Quartz from Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-231677a.jpg]](db_pics/mdpics/MD-231677a.jpg)
![Fluorite, Quartz from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-231678a.jpg]](db_pics/mdpics/MD-231678a.jpg)
![Quartz (Var: Amethyst), Hematite from Thunder Bay District, Ontario, Canada [db_pics/mdpics/MD-231700a.jpg]](db_pics/mdpics/MD-231700a.jpg)
![Quartz from Lantern Hill Quarry (Silex Quarry), North Stonington, New London Co., Connecticut, USA [db_pics/mdpics/MD-231731a.jpg]](db_pics/mdpics/MD-231731a.jpg)
![Quartz (Var: Amethyst) from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-231743a.jpg]](db_pics/mdpics/MD-231743a.jpg)
![Elbaite, Quartz from Darra-i-Pech (Pech; Peech; Darra-e-Pech) Pegmatite Field, Nangarhar (Ningarhar) Province, Afghanistan [db_pics/mdpics/MD-231747a.jpg]](db_pics/mdpics/MD-231747a.jpg)
![Spessartine, Quartz (Var: Smoky Quartz) from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-231807a.jpg]](db_pics/mdpics/MD-231807a.jpg)
![Quartz (Var: Rutilated Quartz) from Bahia, Northeast Region, Brazil [db_pics/mdpics/MD-23182a.jpg]](db_pics/mdpics/MD-23182a.jpg)
![Quartz (Var: Amethyst) from Boekenhoutshoek area (Boekenhouthoek), Mkobola district, Mpumalanga Province, South Africa [db_pics/mdpics/MD-231850a.jpg]](db_pics/mdpics/MD-231850a.jpg)
![Quartz (Var: Amethyst), Epidote from Piedra Parada (Piedras Parado), Mun. de Tatatila, Veracruz, Mexico [db_pics/mdpics/MD-231859a.jpg]](db_pics/mdpics/MD-231859a.jpg)
![Ferberite, Quartz from Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-23186a.jpg]](db_pics/mdpics/MD-23186a.jpg)
![Spessartine, Quartz (Var: Smoky Quartz) from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-23193a.jpg]](db_pics/mdpics/MD-23193a.jpg)
![Chalcopyrite, Quartz from Alimon Mine (Animon Mine), Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-23210a.jpg]](db_pics/mdpics/MD-23210a.jpg)
![Quartz, Pyrite, Sphalerite from Huanzala Mine, Huallanca District, Dos de Mayo Province, Huánuco Department, Peru [db_pics/mdpics/MD-23215a.jpg]](db_pics/mdpics/MD-23215a.jpg)
![Spessartine, Quartz (Var: Smoky Quartz) from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-23217a.jpg]](db_pics/mdpics/MD-23217a.jpg)