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Mineral Specimens with Quartz
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7.2 x 5.5 x 3.5 cm. For sheer beauty and composition this is a superb schorl from Erongo. The interpenetrating Schorls are virtual twins - superb luster and form. The larger of the two, just by a bit, is 4.5 x 4.5 cm. Some small, gemmy Smoky Quartz crystals along the back and on the upper corner add a very nice accent to the Schorls. They are pristine, and fabulous. Ex. Charlie Key.
9.3 x 6.2 x 4.9 cm. A fine Shattuckite of the darkest blue variety - sparkly, lustrous, and riveting. The drusy Shattuckite fills a 3 x 2.5 cm pocket in Quartz, with individual shattuckite balls up to about .8 cm within the pocket. Atop that shattuckite is a micro thin layer of quartz, which adds a sugary sparkle to all. Also in the pocket are several gemmy Quartz crystals included by Shattuckite, atop the rolling hills of earlier growth, giving the Quartz crystals an incredible blue glow. Ex. Charlie Key.
8 x 3.2 x 2.8 cm. A stunning spray of primary Malachite needles growing on top of sky blue Shattuckite, all on Quartz. The Malachite spray itself is 7.3 cm long, and the green contrasts beautifully with the blue. A fabulous combination with incredible aesthetics. Ex. Charlie Key.
5 x 2.2 x 1.2 cm. A superb piece with electric and chatoyant deep green primary malachite perched on the blue quartz. The deep blue color is caused by shattuckite investing the quartz, so it’s sparkly and bright, not dull. A single non-included clear quartz is in the middle of the natural pedestal that serves as a base for the 2-inch, doubly-terminated malachite crystal. Note also the accenting shattuckite rosette atop the upper-left of the malachite. Ex. Charlie Key.
3.8 x 3.8 x 3.8 cm. A cross of two, water-clear quartz crystals is set atop a mounded matrix of glassy, colorless magnesite rhombs. The quartz crystals are beautifully accented with more magnesite rhombs and a peppering of hematite flakes. Classic, older material from the Richard Hauck Quartz Collection.
7.8 x 3.8 x 2.8 cm. This kyanite specimen is from a find of highly lustrous, translucent crystals with a very distinctive blue stripe running down the middle. The gem-like crystal is set on quartz. One end is partially terminated, with the other end being rough.
10.5 x 6.4 x 6.4 cm. A striking doubly terminated cabinet-sized amethsyt/smoky quartz specimen from the Charlie Key Collection. This dramatic piece is transparent, with some crystal faces preferentially water-clear, while others are lightly frosted. The shading variations of the amethyst and smoky colors are noteworthy, as are the clay inclusions. The downward-pointing sidecar termination and the skeletal features are stunning.
4.2 x 3.0 x 2.3 cm. An old-time, very interesting pair of opposing amethyst scepters from Silverton, Colorado. One glassy scepter is on a stalk of amethyst, while the other is on a stalk of smoky quartz. The amethyst on amethyst scepter is doubly terminated. Rare and seldom available Colorado material from the Richard Hauck Quartz Collection.
5.3 x 3.8 x 2.8 cm. A beautiful, naturally faceted, gem-like, smoky quartz Herkimer "diamond" from the Ed David Collection. This water-clear, glassy, crystal is doubly terminated. The primary, sharp termination is exquisite. The other termination is contacted, but has no damage, per se. This specimen is complete-all-around and the anthraxolite inclusions are a very nice accent.
5.4 x 5.4 x 4.6 cm. A 4.1 cm, euhedral, pleasing green emerald crystal is frozen in massive quartz matrix in this fine specimen from recent finds in China. While these crystals certainly are not as gemmy as good Colombian ones, they are lustrous and translucent. One end is terminated against the quartz, while the other end is broken. Highly representative of the species and locality.
4.8 x 3.9 x 3.4 cm. Nestled among glassy, colorless quartz crystals to 3.5 cm in length are bladed crystals of splendent, black ferberite, to 2.6 cm in length. The aesthetics of form, color and crystal pattern are outstanding for a miniature sized example of this material.
7.3 x 4.8 x 4.1 cm. Monazite gets its name from the Greek word "monazein", which means "to be alone", in allusion to its isolated crystals and their rarity when first found. This is a remarkable, very well crystallized, very rare, specimen consisting of sharp, lustrous, gemmy, orange-pink, twinned crystals of Monazite-(Ce) on Quartz on matrix. Monazite is usually found in granitic pegmatites, but these crystals are found in hydrothermal tin veins where there is an absolute absence of Thorium (usually a trace element in Monazite). This piece is from the same mine for which this material was discovered along the Contacto and San Jose veins in this mine and was first described by Sam Gordon and Mark Bandy. These crystals also show a distinct color change in various lightings.
7.8 x 4.5 x 2.7 cm. From noted Colorado collector, Richard A. Kosnar, this piece is a lovely Quartz specimen from the lesser known Osceola mine in the San Juan Mountains. The yellowish hue is most likely due to some kind of iron oxide, and it appears that is not a coating, but actually is just below the surface of the crystals as they have good luster on the exterior faces.
4.9 x 3.3 x 3.1 cm. The Zanett tunnel is named after the family that owns the Grizzly Bear mine. Rhodochrosite specimens from this mine are among some of the most sought after San Juan Rhodochrosites by Colorado collectors. This specimen hosts sharp, translucent, milky, lustrous, prismatic Quartz crystals which are associated with a few small (9 mm) very pale pink rhombohedrons of Rhodochrosite. Ex. Richard Kosnar Collection.
13.9 x 9.8 x 5.8 cm. This is an interesting Indian combination specimen. On a matrix of basalt, drusy white quartz formed first followed by gray spheres of calcite, to 1.75 cm across, then glassy, colorless quartz, to 2.5 cm in length, and lastly, balls of white gyrolite, to 3.25 cm across. The gyrolite has a matte luster with superb translucence.
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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![Schorl, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-251594a.jpg]](db_pics/mdpics/MD-251594a.jpg)
![Shattuckite, Quartz, Malachite from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-251595a.jpg]](db_pics/mdpics/MD-251595a.jpg)
![Shattuckite, Quartz, Malachite from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-251595b.jpg]](db_pics/mdpics/MD-251595b.jpg)
![Malachite, Shattuckite, Quartz from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-251602a.jpg]](db_pics/mdpics/MD-251602a.jpg)
![Shattuckite, Malachite, Quartz from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-251860a.jpg]](db_pics/mdpics/MD-251860a.jpg)
![Shattuckite, Malachite, Quartz from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-251860b.jpg]](db_pics/mdpics/MD-251860b.jpg)
![Magnesite, Quartz from Serra das Éguas, Brumado (Bom Jesus dos Meiras), Bahia, Northeast Region, Brazil [db_pics/mdpics/MD-252495a.jpg]](db_pics/mdpics/MD-252495a.jpg)
![Kyanite, Quartz from Barra de Salinas district, Barra de Salinas, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-252506a.jpg]](db_pics/mdpics/MD-252506a.jpg)
![Quartz (Var: Amethyst), Quartz (Var: Smoky Quartz) from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-252516a.jpg]](db_pics/mdpics/MD-252516a.jpg)
![Quartz (Var: Amethyst) from Silverton, Silverton District, San Juan Co., Colorado, USA [db_pics/mdpics/MD-252539a.jpg]](db_pics/mdpics/MD-252539a.jpg)
![Quartz (Var: Herkimer Diamond) from Herkimer Co., New York, USA [db_pics/mdpics/MD-252554a.jpg]](db_pics/mdpics/MD-252554a.jpg)
![Beryl (Var: Emerald), Quartz from Dayakou, Nanwenhe complex, Malipo Co., Wenshan Autonomous Prefecture, Yunnan Province, China [db_pics/mdpics/MD-252600a.jpg]](db_pics/mdpics/MD-252600a.jpg)
![Beryl (Var: Emerald), Quartz from Dayakou, Nanwenhe complex, Malipo Co., Wenshan Autonomous Prefecture, Yunnan Province, China [db_pics/mdpics/MD-252600b.jpg]](db_pics/mdpics/MD-252600b.jpg)
![Ferberite, Quartz from Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-252616a.jpg]](db_pics/mdpics/MD-252616a.jpg)
![Monazite-(Ce), Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-252668a.jpg]](db_pics/mdpics/MD-252668a.jpg)
![Monazite-(Ce), Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-252668b.jpg]](db_pics/mdpics/MD-252668b.jpg)
![Monazite-(Ce), Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-252668c.jpg]](db_pics/mdpics/MD-252668c.jpg)
![Quartz from Osceola Mine, Cunningham Gulch, Silverton, Silverton District, San Juan Co., Colorado, USA [db_pics/mdpics/MD-252679a.jpg]](db_pics/mdpics/MD-252679a.jpg)
![Quartz, Rhodochrosite from Zanett tunnel, Grizzly Bear Mine, Ouray, Ouray District (Uncompahgre District), Ouray Co., Colorado, USA [db_pics/mdpics/MD-252681a.jpg]](db_pics/mdpics/MD-252681a.jpg)
![Gyrolite, Quartz, Calcite from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-252701a.jpg]](db_pics/mdpics/MD-252701a.jpg)
![Gyrolite, Quartz, Calcite from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-252701b.jpg]](db_pics/mdpics/MD-252701b.jpg)
![Gyrolite, Quartz, Calcite from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-252701c.jpg]](db_pics/mdpics/MD-252701c.jpg)