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Mineral Specimens with Quartz
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3.4 x 1.8 x 0.8 cm. Bright native gold rises from its host quartz matrix, showing crude crystallization. The specimen has been nicely prepared to clear quartz away from the gold so it stands up nicely from the natural quartz "base." Ex. Jaime Bird Collection.
9.0 x 8.1 x 6.4 cm. From the collection of Ed David, a row of three tightly-intergrown crystals of deep purple fluorite from the Wushan Fluorite Mine. They sit up high on their matrix of stark white quartz, from which they were carefully etched to expose them almost completely, from all sides. The largest crystal measures 3.5 cm across.
11.8 x 3.8 x 2.9 cm. A large crystal of natural ametrine (amethyst and citrine hues combined in a single crystal), from Bolivia. The strange forms of these crystals result from natural etching in the pockets in which they form. They are absolutely clear through the interiors, with a silky surface.
11.5 x 8.9 x 4.8 cm. A druse of sparkly quartz covers a large cluster of calcite scalenohedra, and, at the edge, a series of globes of green malachite. The entire specimen sparkles wildly from a sugary covering of quartz. Ex. Consie Prince Collection.
13.4 x 9.2 x 4.8 cm. On this large specimen, an astoundingly glass-clear, razor-sharp crystal of fluorite (2.8 cm along the edge is accompanied by a tumble of smaller, equally fine crystals, on a beautiful setting of snowy quartz.
7.4 x 5.4 x 5.2 cm. A highly modified, almost rounded crystal of green fluorite, with small, frosty octahedral crystals that have attached themselves around its sides in secondary growth. The fluorite group sits up nicely on a quartz matrix carefully etched to expose the fluorites while creating a perfect natural base for them. The big crystal itself measures 4 cm across.
8.1 x 5.8 x 4.8 cm. Two superbly clear, sharp and pretty crystals of fluorite, with associated tabular quartz crystals along with some sulfides, from the prolific Yaogangxian Mine. The crystals measure 2.5 cm along the edge. Note the interesting interpenetration shown on the one crystal.
5.0 x 3.1 x 3.1 cm. A perfect 1.2-cxm gem fluorite crystal is nestled between two milky crystals of quartz from the Yaogangxian Mine.
11.8 x 5.8 x 4.7 cm. Under good light they light up an intense purple-red color. This is two tightly-intergrown crystals, the larger measuring 3.5 cm across and with wonderful transparency for this find.
8.8 x 6.4 x 4.8 cm. A very unusual pseudomorph: quartz has encrusted underlying sharp crystals of halite. On the underside, you can see some of the halite crystals in the hollow interior, now shrunken away from the quartz crust, which retains the original crystal form of the halites. Ex. Jaime Bird Collection.
7.0 x 4.7 x 3.8 cm. A very showy, two-sided combination specimen from the Krushev Dol Mine of the Madan District of Bulgaria. A "forest" of lustrous, lightly frosted, translucent quartz crystals to 3.5 cm "supports" what appears to be a fallen over complex, lustrous, metallic-gray, spinel-twinned galena crystal.
3.5 x 1.9 x 1.7 cm. Sharply terminated quartz crystals, such as this, are rare, and are called the Tessin habit. This water-clear, highly lustrous, beautifully striated, 6-sided, ultra sharp, pristine spear-point is from a classic Connecticut locale - the Becker Quarry. Ex. Richard Hauck Collection. Older material.
5.8 x 5.0 x 3.8 cm. A superb, two-sided, jackstraw cluster of gemmy and lustrous, watermelon tourmalines and glassy, transparent quartz crystals from recent finds at the Pederneira Mine of Brazil. Serious bonuses with this gorgeous piece are the clusters of tiny, yellow apatite crystals on both sides. Many of the crystals have the distinct hexagonal apatite crystal habit. The large tourmaline is 4.0 cm and it’s pristine.
4.1 x 1.6 x 1.4 cm. A beautiful, complete all-around amethyst scepter from an uncommon South Korea locality - Mount Sokri. The increasing purple color intensity at the termination is striking. Part of the scepter is doubly terminated and some faces have skeletal features. The quartz stem has nice stepped-growth faces. Ex. Abe Rosenzweig and Richard Hauck Collections.
13.0 x 9.6 x 7.3 cm. This very large China rhodochrosite specimen has huge crystals to 5.25 cm, perched on contrasting matrix of quartz. The matrix also has pyrites and manganoan calcites speckled about for contrast. This is a large piece, impressive in display, and very colorful.
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Rob Lavinsky, rob@irocks.com
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share specimen![Gold, Quartz from Queen Mine, Nevada City, Nevada City District (Grass Valley District), Nevada Co., California, USA [db_pics/mdpics/MD-217520a.jpg]](db_pics/mdpics/MD-217520a.jpg)
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![Quartz, Calcite, Malachite from Globe, Globe Hills, Globe Hills District, Globe-Miami District, Gila Co., Arizona, USA [db_pics/mdpics/MD-217543a.jpg]](db_pics/mdpics/MD-217543a.jpg)
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![Fluorite, Quartz from Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-217550a.jpg]](db_pics/mdpics/MD-217550a.jpg)
![Fluorite, Quartz from Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-217551a.jpg]](db_pics/mdpics/MD-217551a.jpg)
![Fluorite, Quartz from Wushan Fluorite mine, De'an Co., Jiujiang Prefecture, Jiangxi Province, China [db_pics/mdpics/MD-217554a.jpg]](db_pics/mdpics/MD-217554a.jpg)
![Fluorite, Quartz from Wushan Fluorite mine, De'an Co., Jiujiang Prefecture, Jiangxi Province, China [db_pics/mdpics/MD-217554b.jpg]](db_pics/mdpics/MD-217554b.jpg)
![Quartz, Halite from Jichka, Morocco [db_pics/mdpics/MD-218836a.jpg]](db_pics/mdpics/MD-218836a.jpg)
![Galena, Quartz from Krushev dol deposit, Krushev dol mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria [db_pics/mdpics/MD-219060a.jpg]](db_pics/mdpics/MD-219060a.jpg)
![Quartz from Becker Quarry (Becker's Quarry), West Willington, Willington, Tolland Co., Connecticut, USA [db_pics/mdpics/MD-219065a.jpg]](db_pics/mdpics/MD-219065a.jpg)
![Elbaite, Quartz, Apatite-(CaF) from Pederneira claim, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-219114a.jpg]](db_pics/mdpics/MD-219114a.jpg)
![Elbaite, Quartz, Apatite-(CaF) from Pederneira claim, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-219114b.jpg]](db_pics/mdpics/MD-219114b.jpg)
![Quartz (Var: Amethyst) from Mount Sokri, Chungcheongbukdo (Chungchong-pukto), South Korea [db_pics/mdpics/MD-219118a.jpg]](db_pics/mdpics/MD-219118a.jpg)
