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Mineral Specimens with Quartz
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10.0 x 7.1 x 7.2 cm. A superb cabinet cluster of transparent, very glassy amethyst crystals from Las Vigas, Mexico and the Richard Hauck Quartz Collection. The purple color saturation dramatically intensifies towards the terminations.
7.8 x 5.3 x 3.4 cm. Nestled in a vug of sparkling, colorless quartz crystals, to .8 cm in length, are several, lustrous, black crystals of ilvaite, to 3.1 cm in length. Ex. Carnegie Museum Collection.
18.2 x 9.0 x 5.8 cm. A big, unusual combo piece probably from the 1980s. It has bladed, black, lustrous crystals of hubnerite, to 2.5 cm emplaced on colorless, glassy and gemmy quartz crystals to 5.0 cm in length. Along with these, you have pastel accents of colorless fluorite crystals with green centers, to 2.2 cm across. Ex. Carnegie Museum Collection.
9.0 x 7.7 x 4.2 cm. In person, the spessartines on this Tongbei specimen are not as candy-red as the photo shows - they are more towards the traditional deep sherry color - but the luster and gemminess really are superb. The spessartines are on white contrasting feldspar, with scattered milky crystals of smoky quartz.
12.4 x 7.1 x 4.8 cm. A cluster of very transparent quartz crystals, with a rusty-red color from a coating of hematite. Ex. Richard Hauck Collection.
8.6 x 8.0 x 2.5 cm. An incredibly sculptural and elegant floater cluster of slender, transparent quartz crystals, from China. Ex. Richard Hauck Collection.
6.4 x 6.2 x 4.5 cm. A cluster of lustrous quartz crystals with long, dark acicular crystals of rutile shooting through the middle. Ex. Richard Hauck Collection.
3.9 x 3.3 x 3.0 cm. A rare Virginia amethyst, and not only rare, but look how this crystal shows an astonishing purple color under good light. Collected by George White in 1938. The crystal is complete all the way around, with natural contacts, and glassy faces. Ex. Richard Hauck Collection.
7.1 x 5.6 x 1.9 cm. Here is a stunning pyrite from the Sweet Home Mine, with mirror-bright, golden striated cubes intergrown with minor tetrahedrite, on a bed of transparent quartz needles. Ex. Gene Meieran Collection.
8.8 x 8.3 x 7.7 cm. A superb specimen of amethyst from Bolivia a far cry from your "usual" clusters or plates of small crystals from Brazil. First, there is the beautiful pastel purple, isolated in blushes within the crystals rather than saturating the entire crystal. But you also have this perfect overall form, with smaller crystals surrounding the large, fat central one.
8.4 x 5.7 x 4.9 cm. A superb example of classic Thunder Bay amethyst, here richly included with the hematite that makes these specimens so distinctive, so that it really qualifies as "red quartz" more than amethyst. The luster is excellent. Ex. Richard Hauck Collection.
13.7 x 7.9 x 6.3 cm. A very large and striking specimen of Guerrero amethyst. The largest crystal stretches a full 9 cm. The crystals have the wonderful silky luster and subtle purple color zones that make these specimens highly prized. This was probably mined in the late 1960s or 1970s. Ex. Richard Hauck and John Sinkankas Collections.
5.7 x 4.2 x 2.9 cm. You will probably recognize the gemmy clarity of these crystals as Las Vigas, but look at the very rare form: the crystals taper down to the sharp termination. Ex. Richard Hauck Collection.
9.9 x 6.9 x 4.4 cm. A plate of quartz crystals from the Swiss Alps, the smaller ones orange from hematite inclusions, the larger ones very transparent, with internal phantoms of green chlorite.
15.8 x 12.5 x 5.4 cm. This huge specimen of agate is a thick, solid chunk of a beautiful light coffee-creamy color, with a red area around the small center vug. The specimen has been polished to a nice shine to bring out the beauty.
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Rob Lavinsky, rob@irocks.com
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share specimen![Quartz (Var: Amethyst) from Piedra Parada (Piedras Parado), Mun. de Tatatila, Veracruz, Mexico [db_pics/mdpics/MD-183993a.jpg]](db_pics/mdpics/MD-183993a.jpg)
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![Spessartine, Quartz (Var: Smoky Quartz) from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-184633a.jpg]](db_pics/mdpics/MD-184633a.jpg)
![Spessartine, Quartz (Var: Smoky Quartz) from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-184633b.jpg]](db_pics/mdpics/MD-184633b.jpg)
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![Quartz from Hongquizhen Quarry, Meigu Co., Liangshan Autonomous Prefecture, Sichuan Province, China [db_pics/mdpics/MD-184636a.jpg]](db_pics/mdpics/MD-184636a.jpg)
![Quartz, Rutile from Diamantina, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-184637a.jpg]](db_pics/mdpics/MD-184637a.jpg)
![Quartz, Rutile from Diamantina, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-184637b.jpg]](db_pics/mdpics/MD-184637b.jpg)
![Quartz (Var: Amethyst) from Rice, Prince Edward Co., Virginia, USA [db_pics/mdpics/MD-184639a.jpg]](db_pics/mdpics/MD-184639a.jpg)
![Pyrite, Tetrahedrite, Quartz from Sweet Home Mine (Home Sweet Home Mine), Mount Bross, Alma District, Park Co., Colorado, USA [db_pics/mdpics/MD-184642a.jpg]](db_pics/mdpics/MD-184642a.jpg)
![Quartz (Var: Amethyst) from Anahà Mine (Anay Mine; Anai Mine), La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [db_pics/mdpics/MD-184660a.jpg]](db_pics/mdpics/MD-184660a.jpg)
![Quartz (Var: Amethyst) from Thunder Bay District, Ontario, Canada [db_pics/mdpics/MD-184661a.jpg]](db_pics/mdpics/MD-184661a.jpg)
![Quartz (Var: Amethyst) from Amatitlán, Mun. de Zumpango del Rio, Guerrero, Mexico [db_pics/mdpics/MD-184667a.jpg]](db_pics/mdpics/MD-184667a.jpg)
![Quartz (Var: Amethyst) from Mun. Las Vigas de RamÃrez (Mun. de Profesor Rafael RamÃrez), Veracruz, Mexico [db_pics/mdpics/MD-184671a.jpg]](db_pics/mdpics/MD-184671a.jpg)
![Quartz from Pizzo del Platteo, Minor Valley, Bernina pass area, Engadin, Grischun (Grisons; Graubünden), Switzerland [db_pics/mdpics/MD-184692a.jpg]](db_pics/mdpics/MD-184692a.jpg)
![Chalcedony (Var: Agate) from Juchem Quarry, Niederwörresbach, Idar-Oberstein, Hunsrück Mts, Rhineland-Palatinate, Germany [db_pics/mdpics/MD-184693a.jpg]](db_pics/mdpics/MD-184693a.jpg)