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Mineral Specimens with Fluorite
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9.0 x 8.3 x 3.9 cm. These sharp octahedrons of fluorite embedded in stark white quartz caused a big stir when they came out. The ones you see still coming onto the market are from old stocks, some of which are still being prepped (and painstaking task involving HF acid) - the mining is long over now. This plate has crystals measuring to over 3 cm on edge, translucent green with hints of purple.
6.7 x 6.2 x 3.3 cm. Lustrous, "wet-look", honey-amber fluorite cubes cover a 3-dimensional mounded matrix and are accented with a rich scattering of discrete and clustered pearlescent baryte blades. This is classic combination material, with gemmy, transparent, interpenetrating fluorite cubes.
5.1 x 4.3 x 3.2 cm. A very fine and showy quartz cast after fluorite crystals from the Martyn Zinn Collection. The super-sharp, 2.3 cm, pastel-pink, pyramid/octahedron is a stunning highlight to this excellent piece. The back features pink fluorite and sharp fluorite casts.
6.9 x 3.7 x 1.8 cm. Yttrocerite is an odd blue/purplish calcium fluoride with yttrium and cerium. In other words, it is weird chemistry and here shows as purple splotches. Ex. Philadelphia Academy of Sciences Collection.
9.2 x 4.9 x 2.5 cm. Razor-sharp, translucent octahedrons of fluorite, a beautiful sea-foam green with hints of purple inside – associated with prisms of quartz covered with a snowy second generation of micro quartz.
7.4 x 5.8 x 4.3 cm. Botryoidal fluorites are rare from anywhere; they are best known as the yellow ones that come from Nasik. So there was a lot of excitement when these purple ones were found in China. This is a single "bubble" of a nice small cabinet size, showing the pretty, glowing purple translucency you see when you put them under good light.
13.9 x 10.6 x 2.4 cm. The mining at this location has apparently stopped for good. These deep pink fluorite octahedrons on this large plate measure up to 1.5 cm.
17.4 x 12.1 x 8.8 cm. This is a very large (museum-sized), fine combination specimen. Both the sphalerite and the fluorite on this specimen are superb. The sphalerite has large, lustrous crystals. There is a pretty bloom of white baryte in one place on the sphalerite. Atop the sphalerite is a huge crystal of purple fluorite - 7 cm across the edge - translucent under strong light. Ex. Consie and Dalton Prince Collection.
3.9 x 3.0 x 1.7 cm. A fine, rare, spinel-twinned, purple fluorite crystal from the famous 1984 find at Naica. The multiple faces on this amazing water-clear fluorite look like facets on a cut gemstone. This beautiful, two-sided crystal sits on a shard of quartz matrix and the front faces and ridge-crest are pristine. Ex. Consie Prince collection.
3.5 x 3.5 x 2.5 cm. A fine example from the recent find at Clay Center of glassy, amber-colored fluorites in association with milky crystals of celestine. Clay Center has long been known as a fluorite specimen locality; the crystals can range from transparent such as this, to a rather murky brown.
17 x 17 x 9 cm. The Berbes locality is best-known for its fluorites, but also produced wonderful barytes; you often see them in association with one another, though the fluorites are usually the main feature. However, here, on this very large specimen, it is beautiful blue-grey barytes that is the main feature, on a field of amber fluorites. The barytes are attractively isolated in rows and fans on the fluorites rather than massed together. They measure to 3.5 cm tip-to-tip. This is an older specimen that came out of the Rolf Wein Collection of Germany.
9 x 7.5 x 6 cm. Botryoidal fluorites are rare. They are best known from this Indian locality, and from a recent find in China (purple ones). This one is unusually translucent for one of these – in fact, you can faintly see all the way through it. Second, it is complete all around, with no contacts, and perfectly round. And finally, it is nestled in a perfect “nest” of light purple amethyst crystals as opposed to the normal white quartz.
10.5 x 8 x 3.3 cm. Over the years, the Okarusu Mine has produced finds of fluorite in all sorts of colors – probably the best-known being the green-and-purple ones. Rarely, though, it has produced some specimens of a glowing golden-yellow, as this one. The crystals measure to 1.8 cm along the edge, and are wonderfully transparent.
5.5 x 5.5 x 3.8 cm. Lustrous, translucent and frosted, emerald-green fluorite crystals with purple zoning are richly and attractively attached to the side of three, intergrown, highly lustrous, tapered, parallel-growth schorl crystals with a myriad of terminations from recent finds at Erongo Mountain, Namibia. This fine, complete-all-around, nearly pristine piece even has a couple of glassy, smoky quartz crystals embedded at the base on the other side. Excellent combination material from this famous locale.
5.2 x 4 x 3 cm. Here is a fine example of the purple fluorites the Elmwood Mine is famous for, on a matrix of sphalerite. There are a dozen little jewel-like crystals here, to 0.7 cm.
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Rob Lavinsky, rob@irocks.com
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share specimen![Fluorite from De'an Mine, De'an Co., Jiujiang Prefecture, Jiangxi Province, China [db_pics/mdpics/MD-199472a.jpg]](db_pics/mdpics/MD-199472a.jpg)
![Fluorite, Baryte from Moscona Mine, Solís, Llanera, Villabona mining area, Asturias, Spain [db_pics/mdpics/MD-199580a.jpg]](db_pics/mdpics/MD-199580a.jpg)
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![Fluorite, Baryte, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-200593a.jpg]](db_pics/mdpics/MD-200593a.jpg)
![Fluorite, Celestine from Clay Center, Ottawa Co., Ohio, USA [db_pics/mdpics/MD-200961a.jpg]](db_pics/mdpics/MD-200961a.jpg)
![Baryte, Fluorite from Berbes Mining area, Ribadesella, Asturias, Spain [db_pics/mdpics/MD-200967a.jpg]](db_pics/mdpics/MD-200967a.jpg)
![Fluorite, Quartz (Var: Amethyst) from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-200977a.jpg]](db_pics/mdpics/MD-200977a.jpg)
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![Fluorite, Schorl, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-201026a.jpg]](db_pics/mdpics/MD-201026a.jpg)
![Fluorite, Schorl, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-201026b.jpg]](db_pics/mdpics/MD-201026b.jpg)
![Fluorite, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-201027a.jpg]](db_pics/mdpics/MD-201027a.jpg)