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Mineral Specimens with Quartz
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10.3 x 9.8 x 7.7 cm. An exceptional specimen from old finds here, probably in the 1980s, which features huge tetrahedrite crystals to several inches on size in combination with aesthetic quartz crystals. The specimen is in very good shape, nearly pristine and complete most of the way around the back even. Ex. Francis Allegra collection.
12.0 x 7.8 x 6.2 cm. From the surprising January 2008 find here, this is a symmetric, complete, undamaged crystal showing rich inclusions of the rare species ajoite. Interestingly, the quartz crystal has a "girdle" of sorts of included material which darkens the stalk and thus draws the eye all the more to the beautiful blue atop. Note this is not polished, as so many tragically were. Also, while many were found, few of this size with both good color and with perfect terminations were able to be recovered.
11.5 x 6.0 x 3.1 cm. A fine and important cabinet combination pseudomorph specimen from the Butte District of Montana. Matte-black chalcocite pseudomorphs after covellite plates blanket the contrasting matrix of mirror-bright, brass-yellow pyrite. A scattering of well-placed, lustrous quartz crystals is a beautiful accent.
10.8 x 8.4 x 6.5 cm. This specimen features a very large (for the locality) 8 mm, sharp helvite crystal included near the termination of a glassy, transparent to translucent cabinet quartz crystal. It is from the now-defunct Kara-Oba tungsten mine of Kazakhstan (mined for military supply once). The large quartz crystal is complete all-around, has contacting on only one side and has trivial edge wear for such a large crystal. This came from the Fersman Museum of Moscow back stock in the early 1990s, Dmitriy Belakovskiy, then a curator there on travel to the Houston Museum to support the Faberge exhibit.
5.2 x 4.9 x 3.8 cm. An aesthetic and superb combination specimen from Shengus, Pakistan of a gorgeous, 3.0 cm, doubly terminated, gem, light blue aquamarine crystal attached to the side of lustrous, jackstraw, dark green tourmalines and accented with a well-placed quartz crystal and albite crystals.
6.8 x 5.0 x 4.2 cm. Lustrous, glassy rose quartz crystals aesthetically fill a vug in contrasting white albite and quartz on this fine specimen from a recent small find at Berilo Branco, Brazil. Berilo Branco produced the world famous "Van Allen Belt" rose quartz crystal specimen in the Smithsonian.
7.7 x 3.8 x 3.0 cm. A superb, water-clear smoky quartz crystal accented with a few lustrous, wine-red rutile crystals to 5 mm embedded on and included-in the crystal from Hiddenite, North Carolina. The glassy faces have beautiful, stepped striations and the crystal is essentially pristine. This is a fine old-time specimen from the Richard Hauck Quartz Collection and is accompanied with a Schortmann label, stating that the piece was sold at their 1947 sale in New York City.
9.8 x 7.8 x 4.5 cm. Striated, lustrous, brown brookite blades to 8 mm are richly scattered and hidden on the jackstraw matrix of variably-sized, glassy quartz crystals from the famous Trient Glacier of Switzerland. The large quartz crystal is 4.4 cm. Ex. Rolf Wein Collection, a noted Alpine collector, and purchased at the Basel Show in 1972.
7.3 x 5.0 x 3.0 cm. A superb and aesthetic, two-sided specimen of lustrous, intergrown, tetrahedral, steel-gray tennantite crystals nicely dispersed on contrasting milky quartz matrix from the famous Cobre Mine at Concepcion del Oro, Zacatecas, Mexico. Ex. Dave Stoudt Collection.
1.9 x 1.9 x 1.0 cm. A very unusual thumbnail specimen of a translucent, tan ankerite disc with a water-clear quartz. This weird specimen hails from an unusual and uncommon locale - one of two deposits in Southeastern Oklahoma It’s either from the Mosely Prospect in Coal County or the Springbrook deposit in Johnston County, which are near each other. Ex. Irv Brown Collection.
6.1 x 4.5 x 2.8 cm. An old-time, superb, mounded combination piece from the Groundhog Mine at Vanadium, New Mexico. Mirror-bright, striated, brassy and lightly iridescent chalcopyrite crystals are richly and aesthetically scattered on a porcupine-like forest of water-clear quartz needles. Ex. Stoudt Collection and according to label and their catalogue, this piece dates to circa 1956.
5.2 x 2.3 x 1.2 cm, 2.8 x 2.1 x 1.1 cm, 2.5 x 1.9 x 1.9 cm. From the personal garnet collection of Bill Larson, three superb specimens of spessartine garnet, one with smoky quartz, from this now-familiar locality in China.
9.9 x 6.9 x 5.9 cm. These South African amethysts are instantly recognizable and absolutely unique for their beauty and strange form. The crystals are sceptred, with glowing gemmy tips - and wrapped around their side faces all around are overgrowths of a second generation of small crystals, causing the whole sides of the crystals to sparkle. Ex. Richard Hauck Collection.
10.9 x 9.7 x 6.9 cm. An extremely unusual and ornate specimen of amethyst from a very unusual amethyst locality. There are three main crystals here whose growth patterns are absolutely bizarre, and difficult to describe. The crystals have projections and shelves, and smaller crystals just out of the sides of the larger ones. The color is a very light pastel lavender. Small crystals of both colorless and amethystine quartz surround the large crystals in little bursts. The big crystals measure to 6 cm. Ex. Richard Hauck Collection.
9.9 x 8.9 x 6.9 cm. This is a very unusual Riemvasmaak fluorite in that the fluorites are so stunningly set off by this field of shining milky quartz crystals. The contrast is just gorgeous. The fluorite octahedrons themselves are of superb quality; they measure to 1.5 cm.
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Rob Lavinsky, rob@irocks.com
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Mineral Specimens by species; or
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share specimen![Tetrahedrite, Quartz from Casapalca Mine, Casapalca, Huarochiri Province, Lima Department, Peru [db_pics/mdpics/MD-197467a.jpg]](db_pics/mdpics/MD-197467a.jpg)
![Ajoite, Quartz from Messina mine, Messina District, Limpopo Province, South Africa [db_pics/mdpics/MD-197468a.jpg]](db_pics/mdpics/MD-197468a.jpg)
![Chalcocite, Covellite, Quartz from Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-197761a.jpg]](db_pics/mdpics/MD-197761a.jpg)
![Chalcocite, Covellite, Quartz from Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-197761b.jpg]](db_pics/mdpics/MD-197761b.jpg)
![Helvite, Quartz from Kara-Oba W deposit, Betpakdala Desert (Bet-Pak-Dal Desert), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan [db_pics/mdpics/MD-197764a.jpg]](db_pics/mdpics/MD-197764a.jpg)
![Helvite, Quartz from Kara-Oba W deposit, Betpakdala Desert (Bet-Pak-Dal Desert), Qaraghandy Oblysy (Karaganda Oblast'), Kazakhstan [db_pics/mdpics/MD-197764b.jpg]](db_pics/mdpics/MD-197764b.jpg)
![Beryl, Elbaite, Quartz, Albite from Shengus (Shingus), Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-197767a.jpg]](db_pics/mdpics/MD-197767a.jpg)
![Quartz (Var: Rose Quartz), Albite from Berilo Branco claim, Sapucaia do Norte, Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-197781a.jpg]](db_pics/mdpics/MD-197781a.jpg)
![Quartz (Var: Smoky Quartz), Rutile from Hiddenite, Alexander Co., North Carolina, USA [db_pics/mdpics/MD-197783a.jpg]](db_pics/mdpics/MD-197783a.jpg)
![Quartz (Var: Smoky Quartz), Rutile from Hiddenite, Alexander Co., North Carolina, USA [db_pics/mdpics/MD-197783b.jpg]](db_pics/mdpics/MD-197783b.jpg)
![Brookite, Quartz from Le Trient glacier, Le Trient Valley, Wallis (Valais), Switzerland [db_pics/mdpics/MD-197787a.jpg]](db_pics/mdpics/MD-197787a.jpg)
![Brookite, Quartz from Le Trient glacier, Le Trient Valley, Wallis (Valais), Switzerland [db_pics/mdpics/MD-197787b.jpg]](db_pics/mdpics/MD-197787b.jpg)
![Tennantite, Quartz from Cobre Mine, Concepción del Oro, Mun. de Concepción del Oro, Zacatecas, Mexico [db_pics/mdpics/MD-197791a.jpg]](db_pics/mdpics/MD-197791a.jpg)
![Ankerite, Quartz from Oklahoma, USA [db_pics/mdpics/MD-197928a.jpg]](db_pics/mdpics/MD-197928a.jpg)
![Chalcopyrite, Quartz, Sphalerite from Groundhog Mine, Vanadium, Central District, Grant Co., New Mexico, USA [db_pics/mdpics/MD-197930a.jpg]](db_pics/mdpics/MD-197930a.jpg)
![Spessartine, Quartz (Var: Smoky Quartz) from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-197939a.jpg]](db_pics/mdpics/MD-197939a.jpg)
![Quartz (Var: Amethyst) from Boekenhoutshoek area (Boekenhouthoek), Mkobola district, Mpumalanga Province, South Africa [db_pics/mdpics/MD-197946a.jpg]](db_pics/mdpics/MD-197946a.jpg)
![Quartz (Var: Amethyst) from Huampar Mine, Lima Department, Peru [db_pics/mdpics/MD-197947a.jpg]](db_pics/mdpics/MD-197947a.jpg)
![Fluorite, Quartz from Riemvasmaak, Kakamas District, Northern Cape Province, South Africa [db_pics/mdpics/MD-197952a.jpg]](db_pics/mdpics/MD-197952a.jpg)