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Mineral Specimens with Quartz
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7.8 x 6.8 x 5.0 cm. These sharp, large aragonite crystals have been pseudomorphed by quartz, included by hematite which gives it its reddish tone. So what you have is quartz in the exact form of the prior aragonite crystals, having preserved their form perfectly. This is a floater, in superb condition. Ex. Richard Hauck Collection.
10.5 x 4.5 x 4.4 cm. A fine "cathedral" quartz crystal, multiply-terminated with pretty peaks all around the main termination, and wonderfully transparent. At the bottom is a spray of dark green elbaite crystals that penetrate the quartz and stick out on one side. Ex. Richard Hauck Collection.
13.4 x 12.1 x 3.8 cm. Several crystals of colorless apophyllite, including a large one measuring 5.5 cm along the edge, are perched on a beautiful plate of sparkly, dove-grey quartz. Large, very striking and very different from the usual apophyllite specimen.
14.6 x 6.3 x 6.3 cm. A very large, super-clear, razor-sharp crystal of quartz, in superb condition, from Arkansas. Ex. Richard Hauck Collection.
12.2 x 11.4 x 7.2 cm, 11.8 x 10.4 x 4.5 cm. This is a large quartz-filled geode from Iowa. It features a sparkly, quartz crystal-covered ball inside the outer geode. It has been cracked open without damaging the inner ball. Ex. Richard Hauck Collection.
6.3 x 2.2 x 1.8 cm. A smoky quartz crystal shot through at the bottom with a spray of acicular crystals of rutile. Ex. Richard Hauck Collection.
5.9 x 1.7 x 1.7 cm. This is a bizarre quartz floater crystal with the normal quartz form at one end, but then tapering down to a pointy termination at the other end. The crystal gets its green color from inclusions of chlorite. Ex. Richard Hauck Collection.
4.4 x 4.4 x 4.1 cm. A complete "knob" of amethyst of fantastic quality from Artigas, which turns out these intensely-colored, glossy crystals, sometimes in these pretty knobs with crystals all the way around. Ex. Richard Hauck Collection.
6.3 x 4.6 x 2.9 cm. A stunning and very unusual Brandberg specimen of amethyst sceptres all in a row. The tallest measures 2.5 cm. What is cool is the contrast between the milky bottoms of the crystals and the deep purple caps.
1.8 cm (the largest). A fine small collection of amethyst sceptres from Montana. Ex. Richard Hauck Collection.
7.4 x 5.9 x 3.4 cm. A plate of lustrous, deep rusty-red quartz, which gets its color from rich inclusions of hematite, from Germany. It is interesting to see the areas of purple fluorite on the back of this specimen, an interesting Marienschacht association. Ex. Richard Hauck Collection.
7.1 x 7.1 x 5.1 cm. Different from Guerrero amethysts that consist of a few much larger, elongated crystals, this is an old specimen that is a plate of smaller crystals, more like Brazilian material. Ex. Richard Hauck Collection.
9.2 x 6.8 x 5.4 cm. An unusual old-time specimen of very slender, spiky crystals of quartz, with some platy hematites present, from Cornwall. This was a ridge exposed on both sides in the pocket, so there are crystals on both sides. You can see a sprinkling of what appears to be a sulfide mineral on the quartz crystals. Ex. Richard Hauck Collection.
7.4 x 7.4 x 4.6 cm. An old-time specimen of amethyst from Slovakia, with distinctive crystals having super-gemmy tips, with sub-terminations wrapping all the way around them. Ex. Earle Thornton and Richard Hauck Collection.
7.0 x 6.3 x 4.0 cm. A fascinating, old-time quartz specimen from the Richard Hauck Quartz Collection. Radiating, star-like, milky quartz crystals cover all sides of this very showy piece and every side presents a different perspective. These specimens are so distinctive, that they are called "star quartz."
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Rob Lavinsky, rob@irocks.com
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Mineral Specimens by species; or
by specimen id.
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share specimen![Quartz, Aragonite from Valle de las Plumas, Paso de Indios, Chubut, Argentina [db_pics/mdpics/MD-181582a.jpg]](db_pics/mdpics/MD-181582a.jpg)
![Quartz, Elbaite from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-181583a.jpg]](db_pics/mdpics/MD-181583a.jpg)
![Quartz, Elbaite from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-181583b.jpg]](db_pics/mdpics/MD-181583b.jpg)
![Apophyllite-(KF), Quartz from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-181590a.jpg]](db_pics/mdpics/MD-181590a.jpg)
![Quartz from Hot Springs, Garland Co., Arkansas, USA [db_pics/mdpics/MD-181591a.jpg]](db_pics/mdpics/MD-181591a.jpg)
![Quartz from Keokuk, Lee Co., Iowa, USA [db_pics/mdpics/MD-181592a.jpg]](db_pics/mdpics/MD-181592a.jpg)
![Quartz (Var: Smoky Quartz), Rutile from Saline Valley, Inyo Co., California, USA [db_pics/mdpics/MD-181593a.jpg]](db_pics/mdpics/MD-181593a.jpg)
![Quartz, Chlorite Group from Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan [db_pics/mdpics/MD-181594a.jpg]](db_pics/mdpics/MD-181594a.jpg)
![Quartz (Var: Amethyst) from Artigas, Artigas Department, Uruguay [db_pics/mdpics/MD-181638a.jpg]](db_pics/mdpics/MD-181638a.jpg)
![Quartz (Var: Amethyst) from Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-181643a.jpg]](db_pics/mdpics/MD-181643a.jpg)
![Quartz (Var: Amethyst) from Jefferson Co., Montana, USA [db_pics/mdpics/MD-181645a.jpg]](db_pics/mdpics/MD-181645a.jpg)
![Quartz from Marienschacht Mine, Wölsendorf East District (Wölsendorf - Nabburg District), Wölsendorf Fluorite mining District, Schwandorf, Upper Palatinate, Bavaria, Germany [db_pics/mdpics/MD-181651a.jpg]](db_pics/mdpics/MD-181651a.jpg)
![Quartz from Marienschacht Mine, Wölsendorf East District (Wölsendorf - Nabburg District), Wölsendorf Fluorite mining District, Schwandorf, Upper Palatinate, Bavaria, Germany [db_pics/mdpics/MD-181651b.jpg]](db_pics/mdpics/MD-181651b.jpg)
![Quartz (Var: Amethyst) from Guerrero, Mexico [db_pics/mdpics/MD-181655a.jpg]](db_pics/mdpics/MD-181655a.jpg)
![Quartz, Hematite from Cornwall, England, UK [db_pics/mdpics/MD-181656a.jpg]](db_pics/mdpics/MD-181656a.jpg)
![Quartz (Var: Amethyst) from Banská Štiavnica Mines, Banská Štiavnica (Selmecbánya; Schemnitz), Banská Štiavnica Mining District, Štiavnica Mts, Banská Bystrica Region, Slovakia [db_pics/mdpics/MD-181657a.jpg]](db_pics/mdpics/MD-181657a.jpg)
![Quartz (Var: Star Quartz) from StrážnÃk, PeÅ™imov, Jilemnice (Starkenbach), Liberec Region, Bohemia (Böhmen; Boehmen), Czech Republic [db_pics/mdpics/MD-181681a.jpg]](db_pics/mdpics/MD-181681a.jpg)