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Mineral Specimens with Quartz
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8.9 x 5.2 x 2.8 cm. Here is a really fine spray of smoky quartz crystals from Erongo. Not only do the crystals have fine clarity, but the overall form is unusually aesthetic, so that the specimen can hold its own with those from more traditional quartz localities.
12.1 x 3.9 x 2.9 cm. This is an old-time quartz specimen that was in the Hauck and Caldwell College Collections. This is a fascinating crystal, because you can see two generations of growth. The original prism, with a sandy white coating, was later overgrown by milky quartz with a carpet of crystals on one side. There is a "window" that lets you see the original crystal inside.
7.2 x 3.4 x 2.9 cm. This is a dramatically sceptered quartz crystal from Colorado. As you can see, the sceptering is complete on all six sides of the "cap." Inclusions of what is probably hematite give the crystal a subtle coloration. There is a slight ding at the tip. Ex. Dave Stoudt Collection.
8.4 x 5.4 x 4.5 cm. A Mexican quartz specimen with great aesthetics, from the collection of Dave Stoudt. A fat, sharp large central crystal is garlanded at its base by smaller ones, some of them clear and showing internal inclusions. Inclusions of goethite (iron oxide) give the specimen extra character.
4.6 x 3.3 x 3.1 cm. Another Bisbee piece from Dave Stoudt - extremely striking - little balls of shimmering green velvet malachite on a rolling matrix of sparkly quartz. Bisbee material is really hard to come by now, and it is hard to find aesthetic specimens such as this from the classic locality.
10.0 x 9.4 x 6.9 cm. A spectacular burst of slender, silky quartz crystals from Colorado. The specimen in fabulous condition, despite the fragility of the crystals - you have to look to find the one missing crystal down amongst the others. Ex. Dave Stoudt Collection.
5.1 x 1.0 x 0.9 cm. An unusual doubly-terminated crystal of amethyst from Las Vigas with intense purple color.
17.4 x 11.4 x 4.8 cm. A very large, SPECTACULAR specimen out of the Wein Collection, a notable European collection that was dispersed a couple of years back rich in wonderful, uncommon European specimens. This is a huge plate of dozens of ROSETTES of bright pink rhodochrosite, clustered on a rolling bed of microcrystalline quartz. The matrix rock itself is rich with rhodochrosite; what is fortunate is that the generation of quartz grew on the matrix, providing a beautiful setting for the rhodo rosettes that grew later.
3.7 x 2.4 x 1.4 cm. A strikingly aesthetic small mini of red quartz (included by hematite) from the Oranje River locality in Namibia, with one glassy crystal leaning attractively against another.
7.9 x 5.4 x 3.4 cm. The Oranje River is a great quartz locality that has turned out specimens with a lot of variety. Contrast the little red quartz specimen in this set of auctions, with its slender prismatic crystals, with this cluster of "orange quartz" (hematite-included) - with chunky crystals with microfaces on their sides.
10.5 x 4.8 x 4.2 cm. An uncommon New Mexico amethyst specimen purchased by collector Dave Stoudt at the Socorro Symposium of 2003. The crystals, to 2.5 cm, have pretty purple tips and milky bottoms. The quartz matrix was sliced flat on the bottom for removal, so the specimen sits up nicely.
3.6 x 3.2 x 2.8 cm. A SUPERB specimen of two, super-sharp, tan, talc pseudomorphs after quartz crystals jauntily set in massive talc matrix from a renowned locality for this RARE replacement - the Johannes Mine, Bavaria, Germany. The two pseudos are so sharp and lustrous, that they look man-made, but the beautiful patina is diagnostic, that they are, in fact, natural and not carved from a massive talc block. Seldom on the market in this quality, this is very old material. It once was called "steatite".
3.6 x 3.4 x 2.9 cm. A UNIQUE and showy combination specimen from recent finds at the Wudong Mine of China. A gemmy and lustrous, 8 mm, bi-colored, tan and colorless, apatite crystal sits front and center on cherry-red rhodochroite rhombs, purple fluorite cubes, quartz and a dusting of brass-yellow pyrite cubes. Certainly an unusual and rare specimen from this up and coming locality.
3.3 x 2.2 x 2.1 cm. A STRANGE and UNIQUE quartz ball on calcite matrix from Tsumeb. One-half of the sparkly, microcrystalline surface of the ball is colored green by malachite inclusions and the other half is colored light red by hematite inclusions. Ex. Rob Smith Collection.
6.3 x 3.1 x 2.4 cm. A water-clear, very glassy, Dauphine-twinned smoky quartz crystal from near Hot Springs, Arkansas. Arkansas smoky quartz is not that common and this is a really good. Dauphine-twins are penetration twins with the c-axis as the twin axis. This is a left-handed Dauphine-twin according to the old accompanying card. Beautifully complete all-around, with only trivial termination edge-wear and an undamaged contact on one side. The card probably dates the specimen to the 1950s or 60s. Ex. J. Cilen and Richard Hauck Collections.
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Rob Lavinsky, rob@irocks.com
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share specimen![Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-169731a.jpg]](db_pics/mdpics/MD-169731a.jpg)
![Quartz from Larimer Co., Colorado, USA [db_pics/mdpics/MD-169733a.jpg]](db_pics/mdpics/MD-169733a.jpg)
![Quartz, Goethite from Chihuahua, Mexico [db_pics/mdpics/MD-169738a.jpg]](db_pics/mdpics/MD-169738a.jpg)
![Malachite, Quartz from Southwest Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-169742a.jpg]](db_pics/mdpics/MD-169742a.jpg)
![Quartz from Telluride, Telluride District, San Miguel Co., Colorado, USA [db_pics/mdpics/MD-169746a.jpg]](db_pics/mdpics/MD-169746a.jpg)
![Quartz (Var: Amethyst) from Mun. Las Vigas de RamÃrez (Mun. de Profesor Rafael RamÃrez), Veracruz, Mexico [db_pics/mdpics/MD-169750a.jpg]](db_pics/mdpics/MD-169750a.jpg)
![Rhodochrosite, Quartz from Cavnic (Kapnic; Kapnik), Maramures Co., Romania [db_pics/mdpics/MD-169759a.jpg]](db_pics/mdpics/MD-169759a.jpg)
![Quartz, Hematite from Orange River, Warmbad, Great Namaqualand, Karas Region, Namibia [db_pics/mdpics/MD-169765a.jpg]](db_pics/mdpics/MD-169765a.jpg)
![Quartz from Orange River, Warmbad, Great Namaqualand, Karas Region, Namibia [db_pics/mdpics/MD-169769a.jpg]](db_pics/mdpics/MD-169769a.jpg)
![Quartz (Var: Amethyst) from Cascabel mine, Ladron District, Socorro Co., New Mexico, USA [db_pics/mdpics/MD-169776a.jpg]](db_pics/mdpics/MD-169776a.jpg)
![Talc, Quartz from Johannes Mine, Göpfersgrün, Wunsiedel, Fichtelgebirge, Franconia, Bavaria, Germany [db_pics/mdpics/MD-169782a.jpg]](db_pics/mdpics/MD-169782a.jpg)
![Quartz, Malachite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-169800a.jpg]](db_pics/mdpics/MD-169800a.jpg)
![Quartz (Var: Smoky Quartz) from Hot Springs, Garland Co., Arkansas, USA [db_pics/mdpics/MD-169805a.jpg]](db_pics/mdpics/MD-169805a.jpg)