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Mineral Specimens with Quartz
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4.8 x 4.5 x 2.7 cm. Gemmy and lustrous discs of forest-green uvite crystals and glassy, colorless magnesite rhombs are richly scattered on all sides of a jackstraw cluster of glassy, transparent to translucent quartz crystals. Essentially pristine and has all of the appearances of being a floater.
7.8 x 6.0 x 6.0 cm. A fine, old-time combination specimen from the Tsumeb Mine. Well-developed quartz crystals are uncommon from Tsumeb. Sharp, iron oxide-coated quartz richly cover the front and back of this piece. Sprays of gemmy mimetite needles are scattered on tennantite crystals and on quartz crystals. The left side of the specimen features a 1.8 cm iron oxide-coated tennantite crystal with a few mimetite needles. Ex. Rob Smith Collection.
1.9 x 1.7 x 0.4 cm. Fresnoite is a rare barium, titanium silicate and this fine thumbnail is richly covered with lustrous, sharp, burnt-yellow, blocky, complex crystals to 6 mm perched on quartz matrix from a small find of this hard-to-get species. This is a particularly rich and showy specimen of this rare species from the 1998 find.
7.8 x 5.4 x 4.8 cm. A fine, complete all-around and undamaged cluster of glassy, purple, stair-stepped fluorite cubes from the famous Shangbao Mine of China. Scattered clusters of quartz needles are a very nice accent and the fluorites are attached to thin crust of quartz. The cube faces of the fluorite are water-clear, while the micro stair-steps have a nifty, frosted appearance.
5.4 x 3.4 x 2.4 cm. Here we have a significant matrix example from the type locality for axinite-(Fe). A classic, gorgeous, gemmy and lustrous, 3.6 cm, clove-brown axinite crystal is set on matrix and accompanied by a pristine, water-clear quartz crystal. Ex. Scott Williams Collection.
4.5 x 3.3 x 3.0 cm. A fine, rich silver ore specimen from an unknown mine in the Potosi Department, Bolivia. The specimen is solid, hackly, sponge-like silver with some quartz and a scattering of black acanthite. A handwritten note on the back of the label states that the piece was purchased in Denver, Colorado in 1968 (by previous owner). Ex. George Elling Collection.
8.1 x 4.8 x 4.5 cm. A superb, large, complete all-around amethyst cast after calcite from Artigas, Uruguay. The amethyst has top, dark purple color and lustre and is essentially pristine. The bottom shot reveal the sharp, pseudohexagonal form of the dissolved calcite crystal. Ex. Ken Roberts pseudomorph collection.
4.5 x 4.5 x 4.0 cm. A superb, water-clear, very gemmy, light cognac-colored topaz crystal aesthetically attached to bladed cleavelandite and a shard of quartz from an uncommon Pakistan locality - Bulochi. The topaz crystal is pristine and starkly blocky. Ex. Dave and Emily Stoudt Collection.
6.5 x 4.1 x 2.5 cm. A fine and unusual Spanish specimen of three lustrous, red quartz crystals embedded on Triassic gypsum from Teruel, Aragon, Spain. The two large crystals are doubly terminated, with the largest being 1.6 cm. The piece dates to the 1970s. Ex. Richard Hauck Collection.
9.0 x 4.3 x 3.8 cm. A superb, super-sharp, water-clear quartz crystal with a complex termination from Mt. Ida, Arkansas. Ex. Richard Hauck Quartz Collection.
8.3 x 4.5 x 3.9 cm. Lustrous rose quartz crystals are richly and aesthetically set atop a ship-shaped, milky quartz cleavage. The pearlescent, brown muscovite books are a nifty accent. The solitary, upright muscovite book is 1.9 cm across. Ex. Richard Hauck Collection.
12.0 x 8.7 x 7.5 cm. A fine, two-sided cabinet combination specimen from the Erongo Mountains of Namibia. Superb, mirror-bright, jet-black schorl crystals are set on a solid, 3-dimensional matrix of lustrous, intergrown, smoky quartz crystals. One side has a 4.3 cm, mounded cluster of intergrown schorl crystals. The other side features isolated to clustered schorl crystals to 2.8 cm, many doubly terminated. Ex. Marshall and Charlotte Sussman Collection, purchased in Namibia.
7.7 x 5.8 x 3.5 cm. An old-time, superb, mounded combination piece from the famous Groundhog Mine at Vanadium, New Mexico. This rich sulfide specimen is densely covered with mirror-bright, brass-yellow pyrite cubes, chalcopyrite, chalcopyrite-coated, twinned sphalerite crystals and a scattering of porcupine-like, water-clear quartz needles. Ex. Stoudt Collection and according to their catalogue, this piece dates to circa 1956. They purchased this specimen from Don Moore’s Pebble Pups rock shop in Las Cruces in 2001.
10.1 x 6.9 x 6.8 cm. These fine South African smoky quartz crystals show both wonderful clarity and gorgeous form - long, slender and elegant.
7.9 x 5.5 x 5.0 cm. Green quartz is classic from this Greek island. This piece features clusters of crystals rather than larger singles, richly included with hedenbergite (which is what gives it the green color). Ex. Richard Hauck Collection.
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Rob Lavinsky, rob@irocks.com
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Mineral Specimens by species; or
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share specimen![Uvite, Magnesite, Quartz from Serra das Éguas, Brumado (Bom Jesus dos Meiras), Bahia, Northeast Region, Brazil [db_pics/mdpics/MD-192634a.jpg]](db_pics/mdpics/MD-192634a.jpg)
![Mimetite, Tennantite, Quartz from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-192638a.jpg]](db_pics/mdpics/MD-192638a.jpg)
![Mimetite, Tennantite, Quartz from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-192638b.jpg]](db_pics/mdpics/MD-192638b.jpg)
![Fresnoite, Quartz from Junnila mine, New Idria District, Diablo Range, San Benito Co., California, USA [db_pics/mdpics/MD-192717a.jpg]](db_pics/mdpics/MD-192717a.jpg)
![Fluorite, Quartz from Shangbao Pyrite mine, Leiyang Co., Hengyang Prefecture, Hunan Province, China [db_pics/mdpics/MD-192718a.jpg]](db_pics/mdpics/MD-192718a.jpg)
![Axinite-(Fe), Quartz from Bourg d'Oisans, Isère, Rhône-Alpes, France [db_pics/mdpics/MD-192723a.jpg]](db_pics/mdpics/MD-192723a.jpg)
![Silver, Acanthite, Quartz from Potosà Department, Bolivia [db_pics/mdpics/MD-192727a.jpg]](db_pics/mdpics/MD-192727a.jpg)
![Quartz (Var: Amethyst) from Artigas, Artigas Department, Uruguay [db_pics/mdpics/MD-193803a.jpg]](db_pics/mdpics/MD-193803a.jpg)
![Quartz (Var: Amethyst) from Artigas, Artigas Department, Uruguay [db_pics/mdpics/MD-193803b.jpg]](db_pics/mdpics/MD-193803b.jpg)
![Topaz, Quartz, Albite (Var: Cleavelandite) from Bulochi (Balochi; Balche; Bulache; Bulachi; Drot Balachi), Astor valley (Astore valley), Astor District (Astore District), Northern Areas, Pakistan [db_pics/mdpics/MD-193811a.jpg]](db_pics/mdpics/MD-193811a.jpg)
![Quartz, Gypsum from Teruel, Aragón, Spain [db_pics/mdpics/MD-193813a.jpg]](db_pics/mdpics/MD-193813a.jpg)
![Quartz, Gypsum from Teruel, Aragón, Spain [db_pics/mdpics/MD-193813b.jpg]](db_pics/mdpics/MD-193813b.jpg)
![Quartz from Mt Ida, Montgomery Co., Arkansas, USA [db_pics/mdpics/MD-193815a.jpg]](db_pics/mdpics/MD-193815a.jpg)
![Quartz from Mt Ida, Montgomery Co., Arkansas, USA [db_pics/mdpics/MD-193815b.jpg]](db_pics/mdpics/MD-193815b.jpg)
![Quartz (Var: Rose Quartz), Muscovite from Governador Valadares, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-193817a.jpg]](db_pics/mdpics/MD-193817a.jpg)
![Schorl, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-193865a.jpg]](db_pics/mdpics/MD-193865a.jpg)
![Schorl, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-193865b.jpg]](db_pics/mdpics/MD-193865b.jpg)
![Pyrite, Chalcopyrite, Sphalerite, Quartz from Groundhog Mine, Vanadium, Central District, Grant Co., New Mexico, USA [db_pics/mdpics/MD-193870a.jpg]](db_pics/mdpics/MD-193870a.jpg)
![Quartz (Var: Smoky Quartz) from Namaqualand, Northern Cape Province, South Africa [db_pics/mdpics/MD-193872a.jpg]](db_pics/mdpics/MD-193872a.jpg)
![Quartz, Hedenbergite from Mega Horio, Serifos Island (Seriphos), Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon), Kykládes Prefecture, Aegean Islands (AiyaÃon) Department, Greece [db_pics/mdpics/MD-193873a.jpg]](db_pics/mdpics/MD-193873a.jpg)