|
Mineral Specimens with Quartz
(click on a page number to go to that page:)
page 118 / 372 - prev - 5579 specimens selected - next
7.0 x 5.0 x 4.0 cm. A gemmy and lustrous, 5.0 cm, polychrome tourmaline aesthetically wrapped in a partially euhedral smoky quartz cleavage from an UNCOMMON San Diego County locality - the San Diego Tourmaline Mine. The pink and green portions of this striking tourmaline are particularly gemmy and the etched termination is an indicolite-blue! VERY SELDOM on the market in this quality. Miner Eugene Rynerson collected this very showy piece circa 1970, according to the accompanying note. This mine also works the Himalaya pegmatite dike.
5.5 x 3.5 x 3.3 cm. An UNCOMMON, showy and excellent mimetite varietal from Tsumeb. Lustrous, frosted, straw-yellow mimetite crystals to 2.1 cm are jauntily arranged upright on a matrix crust of solid mimetite. The mimetites are accented with unusual and uncommon drusy quartz and are very nicely complimented by a scattering of cerussite crystals, which are also uncommon with mimetite. Ex. Rob Smith Collection.
8.4 x 6.5 x 4.3 cm. A UNIQUE, RARE and VERY SHOWY combination specimen from the Elizabeth R. Mine on Chief Mountain. A cluster of three, sharp, lustrous, dark gray tantalite crystals to 1.4 cm are aesthetically nested on quartz-rich matrix covered with lepidolite, smoky quartz crystals and a scattering of cleavelandite blades. The large, translucent, DOUBLY TERMINATED smoky is 3.5 cm and has an undamaged, frosted termination. Ex. Chris Korpi Collection.
6.6 x 5.4 x 5.4 cm. This specimen, out of the collection of Marty Zinn, gets more fascinating when you look at it closely. Inside this pretty amethyst geode is a single, isolated crystal of calcite. If you look at its surface, you can see that a perfect little sphere of fluorite, one of the botryoidal "egg" fluorites that are well-known from Mahodari, has formed right on the calcite!
7.9 x 7.6 x 4.9 cm. This is a plate of gemmy crystals from Namqualand in South Africa, which was actually a diamond-mining district with a history that goes back nearly a hundred years.
5.3 x 4.4 x 2.9 cm. This is a cluster of doubly-terminated, super glassy and gemmy crystals of smoky quartz from Erongo, with the smoky color isolated in strips, making the specimen unique and extremely aesthetic!
5.9 x 5.8 x 5.4 cm. More quartz, this from the well-known Orange river locality. The crystals are bright red from inclusions of hematite.
8.2 x 5.7 x 5.3 cm. A plate of amethyst crystals with gemmy purple tips surrounded by dozens of subterminations that wrap around the sides of the crystals. As you can see, very different from your "average" amethyst specimen, and super-pretty.
6.7 x 5.2 x 4.2 cm. A large quartz point, transparent and with sharp faces, that is richly shot through with sparkling, golden acicular crystals of rutile. This is classic material from Brazil. Superb quality single point, all natural faces without polishing being applied.
9.5 x 6.5 x 4.4 cm. These beautiful amethystine quartz specimens from Irai are known as "flowers" for an obvious reason: they have a cupped shape like a beautiful bloom! The color is very light pastel lavender. The crystals grow outward from a central point to form the crystal "cup".
9.0 x 4.6 x 2.2 cm. This specimen came from collector Dave Stoudt, whose travels in Argentina gave him access to many unusual specimens not typically seen on the market. So while this LOOKS like an Illinois fluorite, it is actually an ARGENTINE specimen from a locality better known for rhodochrosite (the drusy quartz/chalcedony matrix is notably "different" from Illinois). The largest fluorite crystal measures 2.5 cm along the edge.
7.7 x 2.1 x 1.4 cm. A crystal that shows off very well why these Brandbergs are amongst the nobility of quartz specimens. Inside the gemmy interior, the smoky and purple hues are isolated as beautiful floating "blushes."
7.8 x 3.0 x 2.2 cm. Check out this fabulous DOUBLE-sceptred crystal from Namibia! It has both amethystine and smoky hues inside, but what is most remarkable are the reverse sceptres at the terminations. One of these terminations has the complete, gemmy and fine sceptre; the other is not terminated, but you can see the sceptre "stalk".
10.3 x 7.5 x 4.2 cm. These Georgia amethysts are prized as some of the best American amethyst specimens ever. Under good light, they glow an intense purple that rivals a fine Bolivian amethyst (but they are much less common, of course). That one crystal you see to the right glows like a Christmas light under case-light! That is natural etching you see on the lighter crystal to the left, not damage.
8.6 x 6.7 x 3.8 cm. Another unusual specimen from the Argentine travels of collector Dave Stoudt, again from an area known more for its rhodo specimens - a cluster of large, chunky crystals of smoky quartz, with just a bit of attached accenting microcline matrix. You can see a sprinkling of tiny inclusions just inside the crystal faces, of what appears to be bright red lepidocrocite, and an unidentified dark mineral.
(click on a page number to go to that page:)
page 118 / 372 - prev - 5579 specimens selected - next
Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
Mineral Specimens by species; or
by specimen id.
|
share specimen![Elbaite, Quartz from San Diego Mine, Gem Hill, Mesa Grande District, San Diego Co., California, USA [db_pics/mdpics/MD-170562a.jpg]](db_pics/mdpics/MD-170562a.jpg)
![Mimetite, Quartz, Cerussite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-170563a.jpg]](db_pics/mdpics/MD-170563a.jpg)
![Tantalite, Quartz, Lepidolite from Elizabeth R. Mine, Chief Mountain, Pala District, San Diego Co., California, USA [db_pics/mdpics/MD-170570a.jpg]](db_pics/mdpics/MD-170570a.jpg)
![Tantalite, Quartz, Lepidolite from Elizabeth R. Mine, Chief Mountain, Pala District, San Diego Co., California, USA [db_pics/mdpics/MD-170570b.jpg]](db_pics/mdpics/MD-170570b.jpg)
![Fluorite, Calcite, Quartz (Var: Amethyst) from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-170593a.jpg]](db_pics/mdpics/MD-170593a.jpg)
![Quartz from Namaqualand, Northern Cape Province, South Africa [db_pics/mdpics/MD-170596a.jpg]](db_pics/mdpics/MD-170596a.jpg)
![Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-170601a.jpg]](db_pics/mdpics/MD-170601a.jpg)
![Quartz, Hematite from Orange River, Warmbad, Great Namaqualand, Karas Region, Namibia [db_pics/mdpics/MD-170602a.jpg]](db_pics/mdpics/MD-170602a.jpg)
![Quartz (Var: Amethyst) from Boekenhoutshoek area (Boekenhouthoek), Mkobola district, Mpumalanga Province, South Africa [db_pics/mdpics/MD-170617a.jpg]](db_pics/mdpics/MD-170617a.jpg)
![Quartz, Rutile from Ibitiara, Bahia, Northeast Region, Brazil [db_pics/mdpics/MD-170619a.jpg]](db_pics/mdpics/MD-170619a.jpg)
![Quartz (Var: Amethyst) from IraÃ, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil [db_pics/mdpics/MD-170620a.jpg]](db_pics/mdpics/MD-170620a.jpg)
![Fluorite, Quartz (Var: Chalcedony) from El Portezuelo, Sierra de Ascasti, Catamarca, Argentina [db_pics/mdpics/MD-170672a.jpg]](db_pics/mdpics/MD-170672a.jpg)
![Quartz (Var: Smoky Quartz), Quartz (Var: Amethyst) from Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-170673a.jpg]](db_pics/mdpics/MD-170673a.jpg)
![Quartz from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-170684a.jpg]](db_pics/mdpics/MD-170684a.jpg)
![Quartz (Var: Amethyst) from Jacksons Crossroads, Wilkes Co., Georgia, USA [db_pics/mdpics/MD-170686a.jpg]](db_pics/mdpics/MD-170686a.jpg)
![Microcline, Quartz (Var: Smoky Quartz) from Papachacra, Belen Department, Catamarca, Argentina [db_pics/mdpics/MD-170712a.jpg]](db_pics/mdpics/MD-170712a.jpg)