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Mineral Specimens with Quartz
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7.7 x 5.8 x 5.2 cm. A superb specimen that is really not so much a pyromorphite as an association piece. It is quite dramatic, and the color is really more intense than shown. Ex. Dr. Gary Hansen Collection.
6.4 x 4.8 x 3.4 cm. A single sharp smoky quartz crystal of superb quality leans out from a field of very gemmy orange-red spessartine garnets.
7.2 x 6.9 x 6.8 cm. Natural internal fracturing makes these fluorite crystals look rough in the photo, but in person they have very lustrous faces. In another recessed area are crystals of smoky quartz. Both are nestled in stark white albite.
7.9 x 5.6 x 4.9 cm. A complex intergrowth of several doubly-terminated crystals of amethyst that formed a knob, with the crystals ranged around a central crystal underneath that was the matrix contact point. Inside the crystal you can see areas of skeletal growth that are now completely enclosed, creating pretty geometric reflections inside.
3.9 x 2.9 x 1.7 cm. This is a polished specimen of "fire agate" that is very rare. It plays with light the way opal does, from fiery reds to neon green. This is a sizeable 20-gram specimen that is only about 10% matrix.
6.5 x 3 x 2.2 cm. This is a sharp, very gemmy single citrine crystal, with superb glassy luster and fine symmetrical form.
11.2 x 7.4 x 4.9 cm. Above the large flat face of a milky quartz crystal is a cluster of rose quartz crystals. These crystals are flattened and growing in parallel; the longest of them measures 4 cm.
8.8 x 2.7 x 2.1 cm. This specimen consists of two intergrown crystals shooting out in opposite directions. They have superb clarity, and are terminated, undamaged and contact-free - this is a floater.
6.9 x 6.2 x 4.9 cm. Another Ethiopian amazonite specimen, this one a combo with a half-dozen smoky quartz crystals sprouting on one face. Smokies have actually grown on all the side faces of this crystal.
12.0 x 7.0 x 3.0 cm. Well-formed fluorite crystals are uncommon at Broken Hill, but this showy and excellent cabinet specimen has sharp, blue-gray octahedrons richly scattered on the drusy chalcedony-coated quartz matrix. The octahedrons reach 5 mm. Ex. Mark Feinglos Collection.
9.5 x 6.2 x 5.7 cm. A fine, symmetrical, light salmon-pink heulandite fan is centrally placed in a curved vug coated with drusy chalcedony. The heulandite is accompanied by a blocky, colorless calcite rhomb, which is beautifully accented by a lustrous, salmon-pink stilbite blade. Both the heulandite and calcite crystals are preferentially over-coated with a sparkly druse of chalcedony.
10.0 x 9.0 x 4.5 cm. A superb cabinet specimen of a water-clear, glassy quartz crystal beautifully coated with sparkly pyrite microcrystals and attended to by highly lustrous, tabular/blocky wolframite crystals and smaller quartz crystals. Ex. Cal Graeber and Dave & Emily Stoudt Collections.
5.5 x 4.9 x 2.7 cm. Perfect orange orpiment crystals to 9 mm are scattered on a milky quartz crystal-lined vug on this fine, old specimen from the historic Mercur District of Utah. These sharp, translucent crystals have a beautiful gem-like quality to them. Ex. John Ydren Collection.
9.2 x 2.7 x 2.5 cm. An attractive, well-developed Smoky Quartz sceptre on a citrine stalk from this famous Namibian locality. The luster and smoky color are both excellent, but what is extraordinary is the length of the sceptor tip, which ranges from 3 cm to 4.5 cm. Ex. Charlie Key.
6 x 3.5 x 2.4 cm. A fine specimen comprised of a Bornite-coated Chalcopyrite crystal nestled in a bed of clear Quartz crystals and superb lustrous Pyrite crystals. The Bornite-coated crystal is up to 1.5 cm across. Ex. Charlie Key.
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Rob Lavinsky, rob@irocks.com
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share specimen![Pyromorphite, Quartz from Dry Gill Mine, Caldbeck Fells, North and Western Region (Cumberland), Cumbria, England, UK [db_pics/mdpics/MD-180548a.jpg]](db_pics/mdpics/MD-180548a.jpg)
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![Agate (Var: Fire Agate) from Aguascalientes, Mexico [db_pics/mdpics/MD-180670a.jpg]](db_pics/mdpics/MD-180670a.jpg)
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![Quartz (Var: Rose Quartz), Quartz from Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-180705a.jpg]](db_pics/mdpics/MD-180705a.jpg)
![Quartz from Hot Springs, Garland Co., Arkansas, USA [db_pics/mdpics/MD-180706a.jpg]](db_pics/mdpics/MD-180706a.jpg)
![Microcline (Var: Amazonite), Quartz (Var: Smoky Quartz) from Konso, Sidamo-Borana Province, Ethiopia [db_pics/mdpics/MD-180723a.jpg]](db_pics/mdpics/MD-180723a.jpg)
![Fluorite, Quartz (Var: Chalcedony) from Zinc Corporation Mine (ZC Mine), Broken Hill, Yancowinna Co., New South Wales, Australia [db_pics/mdpics/MD-180735a.jpg]](db_pics/mdpics/MD-180735a.jpg)
![Fluorite, Quartz (Var: Chalcedony) from Zinc Corporation Mine (ZC Mine), Broken Hill, Yancowinna Co., New South Wales, Australia [db_pics/mdpics/MD-180735b.jpg]](db_pics/mdpics/MD-180735b.jpg)
![Heulandite-Ca, Stilbite-Ca, Calcite, Quartz (Var: Chalcedony) from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-180745a.jpg]](db_pics/mdpics/MD-180745a.jpg)
![Quartz, Pyrite, Wolframite from Panasqueira, Covilhã, Castelo Branco District, Portugal [db_pics/mdpics/MD-180764a.jpg]](db_pics/mdpics/MD-180764a.jpg)
![Orpiment, Quartz from Mercur District (Camp Floyd District), Oquirrh Mts, Tooele Co., Utah, USA [db_pics/mdpics/MD-180768a.jpg]](db_pics/mdpics/MD-180768a.jpg)
![Quartz (Var: Smoky Quartz), Quartz (Var: Citrine) from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-180786a.jpg]](db_pics/mdpics/MD-180786a.jpg)
![Bornite, Chalcopyrite, Pyrite, Quartz from Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-180793a.jpg]](db_pics/mdpics/MD-180793a.jpg)
![Bornite, Chalcopyrite, Pyrite, Quartz from Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-180793b.jpg]](db_pics/mdpics/MD-180793b.jpg)