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Mineral Specimens with Quartz
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13.0 x 8.0 x 5.0 cm. An aesthetic and unusual cabinet specimen of from recent finds in Namaqualand, South Africa. The glassy quartz crystals at the top of this piece have intensely purple interior phantoms, just in the termination portion of the quartz crystals. These crystals give the distinct impression of being scepters, but they are not.
4.9 x 2.5 x 2.2 cm. A pristine and showy doubly terminated quartz crystal from Brazil. The terminations are water-clear and the translucent center is nicely highlighted and accented by smaller quartz crystals and a bit of iron oxide staining.
6.1 x 4.3 x 3.3 cm. An aesthetic combination specimen of sharp, glassy, translucent, smoky quartz crystals and richly scattered with lustrous schorl needles to 3.1 cm on white microcline. This beautiful combination piece is nearly pristine. From a recent find in the Andes of Argentina.
5.5 x 1.9 x 1.5 cm. A rare, fine quartz specimen from Madagascar. The water-clear quartz crystal encloses a small quartz crystal that is coated with blue-green fuchsite, making for a striking phantom. Fuchsite is the greenish variety of muscovite, high in chromium and is relatively rare worldwide. There is even fuchsite in the small quartz crystal.
From the collection of noted Colorado collector George Fisher, a fine, fat, translucent smoky leaning against an accenting amazonite crystal. In person it is faintly blue, by the way. There is the tiniest hint of edge wear at the top of the smoky’s termination, but it is difficult to see, and no damage anywhere else. 6.8 x 6 x 5.3 cm
5.0 x 3.3 x 2.3 cm. Goosecreekite is a very rare zeolite and this fine specimen has a 3.7 cm bowtie-like cluster of snow-white goosecreekite crystals on sparkly drusy quartz.
5.0 x 4.5 x 3.6 cm. An old-time and aesthetic cluster of two, intergrown, doubly terminated, translucent amethyst crystals with pleasing variable purple color intensity from a classic South Carolina locality - Due West. Some of the finest Eastern USA amethysts have come from Due West. The purple color variations are really highlighted in the photo. Ex. George Feist Collection # 2192.
6.3 x 2.8 x 2.5 cm (largest). An excellent, 2-piece set of old-time smoky quartz crystals from Conway, New Hampshire and the Richard Hauck Quartz Collection. Both crystals are lustrous, glassy and have good color. The spear-point is nearly pristine. The stout crystal has very high lustre, richer smokiness and very interesting, stepped growth faces. Accompanied by a handwritten card with an August 21, 1959 date. Classic New England material.
5.8 x 4.8 x 4.2 cm. Specimens from the much less well-known Kavalerovo Mining District, near Dal’negorsk, Russia are much rarer than from the much more famous nearby Dal’negorsk mines. A 3.1 cm, very distinctive and diagnostic, blue-green fluorite octahedron is nicely set on and partially enclosed by glassy quartz crystals. The fluorite is nicely translucent and the lightly frosted crystal faces have moderate lustre. The quartz crystals are peppered with fluorite microcrystals and a single, fine, small fluorite octahedron. Specimens of this quality came out in the early 1990s, with none since.
11.4 x 10.3 x 5.5 cm. A striking and beautiful geode half highlighted by a 2.6 cm, gemmy, amber calcite scalenoehdron. The geode is lined with sparkly, dark amethyst crystals and a few, doubly terminated, pencil calcites to 1.3 cm are a very nice accent. The sawed edge has been sprayed with krylon to give it gloss. Ex. Steve Smale Collection.
11.4 x 10.0 x 4.0 cm. A sculptural, cabinet vug is beautifully and richly lined with blocky baryte crystals to 2.4 cm coated completely with sparkly, sugary quartz microcrystals. The display face is pristine. These are quite distinctive and should become Nevada classics in the future. This is an excellent example from this well known single find of this style.
10.5 x 8.8 x 3.4 cm. Scintillating, multi-hued amethyst crystals coat the terminated portion of a cabinet calcite cleavage on this striking specimen from a new find. The stair-steps and color banding (with smoky quartz highlights) on the amethyst-coated section of the piece are very dramatic. Excellent and unusual material from Irai, Rio Grande do Sul, Brazil.
12.4 x 11.4 x 10.5 cm. A superb, super-glassy smoky quartz crystal aesthetically complimented by muscovite. This 11.5 cm specimen has great smoky color and the crystal has mesmerizing internal views from every side - looking right through it as if it were glass. The pearlescent muscovite blades grade from golden, near the smoky quartz, to silvery on the perimeter. The smoky quartz is very nearly pristine.
6.9 x 6.2 x 5.4 cm. This is an older Brazilian specimen that came out of the ground and went straight into the collection of Charles Leavitt of Arizona, probably in the 1970s. It is a spectacular, multi-generational quartz specimen where underlying rose quartz has served as a base for the growth of dozens of sharp, doubly-terminated, di-pyramidal, "beta-style" smoky crystals. It is really unusual to see rare rose quartz and smoky quartz paired together. This is an old piece. Ex. Richard Hauck Quartz Collection.
8.8 x 6.7 x 3.7 cm. Bolivia has probably produced more tin than any other country in the world. The great tin mines at Viloco (sometimes called Araca) have produced some of the most magnificent Cassiterite specimens extant. This piece features sharp, highly lustrous, somewhat gemmy, brown and black color, cyclic twinned Cassiterite crystals measuring up to 9 mm associated with small tan Siderite discs and gemmy Quartz crystals. This specimen was actually mined about 20 years ago when Viloco was really pumping out specimens.
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Rob Lavinsky, rob@irocks.com
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share specimen![Quartz (Var: Amethyst), Quartz from Namaqualand, Northern Cape Province, South Africa [db_pics/mdpics/MD-243314a.jpg]](db_pics/mdpics/MD-243314a.jpg)
![Quartz (Var: Amethyst), Quartz from Namaqualand, Northern Cape Province, South Africa [db_pics/mdpics/MD-243314b.jpg]](db_pics/mdpics/MD-243314b.jpg)
![Quartz from Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-243347a.jpg]](db_pics/mdpics/MD-243347a.jpg)
![Quartz from Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-243347b.jpg]](db_pics/mdpics/MD-243347b.jpg)
![Quartz (Var: Smoky Quartz), Schorl, Microcline from Papachacra, Belen Department, Catamarca, Argentina [db_pics/mdpics/MD-243354a.jpg]](db_pics/mdpics/MD-243354a.jpg)
![Quartz, Muscovite (Var: Fuchsite) from Mt.Masomeloka, Mananjary emerald District, Vatovavy-Fitovinany Region, Fianarantsoa Province, Madagascar [db_pics/mdpics/MD-243369a.jpg]](db_pics/mdpics/MD-243369a.jpg)
![Quartz (Var: Smoky Quartz), Microcline (Var: Amazonite) from Park Co., Colorado, USA [db_pics/mdpics/MD-24337a.jpg]](db_pics/mdpics/MD-24337a.jpg)
![Goosecreekite, Quartz from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-243372a.jpg]](db_pics/mdpics/MD-243372a.jpg)
![Goosecreekite, Quartz from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-243372b.jpg]](db_pics/mdpics/MD-243372b.jpg)
![Quartz (Var: Amethyst) from Ellis-Jones Mine, Due West, Abbeville Co., South Carolina, USA [db_pics/mdpics/MD-243387a.jpg]](db_pics/mdpics/MD-243387a.jpg)
![Quartz (Var: Smoky Quartz) from Conway, Carroll Co., New Hampshire, USA [db_pics/mdpics/MD-243393a.jpg]](db_pics/mdpics/MD-243393a.jpg)
![Quartz (Var: Smoky Quartz) from Conway, Carroll Co., New Hampshire, USA [db_pics/mdpics/MD-243393b.jpg]](db_pics/mdpics/MD-243393b.jpg)
![Fluorite, Quartz from Kavalerovo Mining District, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-243397a.jpg]](db_pics/mdpics/MD-243397a.jpg)
![Fluorite, Quartz from Kavalerovo Mining District, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-243397b.jpg]](db_pics/mdpics/MD-243397b.jpg)
![Calcite, Quartz (Var: Amethyst) from Las Choyas, Mun. de Ahumada, Chihuahua, Mexico [db_pics/mdpics/MD-243403a.jpg]](db_pics/mdpics/MD-243403a.jpg)
![Calcite, Quartz (Var: Amethyst) from Las Choyas, Mun. de Ahumada, Chihuahua, Mexico [db_pics/mdpics/MD-243403b.jpg]](db_pics/mdpics/MD-243403b.jpg)
![Quartz, Baryte from Murray mine, Independence Mountains District, Elko Co., Nevada, USA [db_pics/mdpics/MD-243405a.jpg]](db_pics/mdpics/MD-243405a.jpg)
![Quartz (Var: Amethyst), Calcite from IraÃ, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil [db_pics/mdpics/MD-243412a.jpg]](db_pics/mdpics/MD-243412a.jpg)
![Quartz (Var: Smoky Quartz), Muscovite from Governador Valadares, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-243416a.jpg]](db_pics/mdpics/MD-243416a.jpg)
![Quartz (Var: Smoky Quartz), Quartz (Var: Rose Quartz) from Barra de Salinas district, Barra de Salinas, Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-243425a.jpg]](db_pics/mdpics/MD-243425a.jpg)
![Cassiterite, Siderite, Quartz from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-243428a.jpg]](db_pics/mdpics/MD-243428a.jpg)
![Cassiterite, Siderite, Quartz from Viloco Mine (Araca mine), Loayza Province, La Paz Department, Bolivia [db_pics/mdpics/MD-243428b.jpg]](db_pics/mdpics/MD-243428b.jpg)