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Mineral Specimens with Fluorite
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4.7 x 3.9 x 3.5 cm. An interesting fluorite miniature with water clear transparency throughout most of the piece, which makes the diverse crystal habits and complex faces all the more visually appealing because they reflect light off so many different directions, the colorlessness enhances their effect. The crystals at the core are cubes, with secondary growths around them of more complex habits. Ex. Charlie Key Collection.
2.4 x 2.1 x 1.7 cm. From a small, very strange pocket found in 2006, this is a fine cluster of quartz enclosing a green ball of botryoidal (acrystalline) fluorite in its midst. It is a thumbnail that at first guess looks much more like a prehnite than a fluorite. Ex. Charlie Key.
5.1 x 3.7 x 2.0 cm. A beautiful 2.1-cm botryoidal fluorite cluster perched like a fried egg as we fondly call them, on lustrous quartz crystals. Modern classics from India, these were more abundant a few years ago and not around as much now. This one has a yellow-green color to it. Ex. Charlie Key.
4.0 x 3.4 x 3.3 cm. An admittedly lumpy crystal, with naturally rounded faces that give it the look of a blue beanbag more than a cuboctahedral fluorite at first glance, this piece has intense blue color that is rare for the locality and quite attractive. Ex. Charlie Key.
7.1 x 5.6 x 3.6 cm. An unusual, melted-looking fluorite crystal which is just plain bizarre in person. It looks almost like a green ball of wax, though you can see faces and symmetry of course. Highly translucent and richly colored, this is a beautiful and unusual small cabinet from Erongo. Ex. Charlie Key.
5.1 x 3.4 x 2.2 cm. A rare, aesthetic, spinel-twinned fluorite crystal on quartz from the Yaogangxian Mine of China. A 3.0 cm, gemmy and lustrous, pastel-green fluorite crystal is perched at an angle of a pedestal of parallel-growth quartz crystals. The intensely purple zoning in the spinel-twin fluorite is a vivid and beautiful accent. The quartz crystals have a secondary overgrowth of drusy quartz. This is a pristine, complete all-around rarity from this well-known locale.
11.0 x 9.4 x 3.0 cm. Gorgeous, gemmy, intensely purple, grape-like fluorite cuboctahedrons to 2.3 cm are richly and aesthetically scattered on the etched, cabinet quartz plate matrix on this specimen from recent finds at the Wushan Mine, De’an, China. The fluorite crystal faces appear to be step-faced, but in fact, are very lightly etched. A superb specimen for the size, given the isolation and quality of the grape-juice-colored crystals.
6.4 x 4.4 x 3.4 cm. A fine crystal of deep purple fluorite from the Elmwood Mine, on just the right amount of sparkly matrix. The fluorite itself measures 3 cm along the edge. A super piece for the size with great color. Ex. Jaime Bird Collection.
8.8 x 6.8 x 3.8 cm. Transparent cubes of golden-yellow fluorite, piled up richly on the matrix, from Spain. They have a beautifully limpid "honey-like" quality to them.
6.8 x 6.0 x 5.4 cm. A specimen of very sharp crystals of microcline, including some little Carlsbad Twins - with smoky quartz points sticking up amongst them, and a rare association of purple fluorite octahedral. From a recent find in Argentina.
15.8 x 10.4 x 8.3 cm. Kavalerovo is a small mine north of Dal’negorsk. Ed David specialized in Russian minerals and long enjoyed owning this important locality fluorite specimen. Here you have 1.4 kilograms of quartz matrix, crystallized no less, with three superb, translucent, complex fluorite crystals to 4.5 cm sitting in a row. Ex. Edward E. David Collection.
11.8 x 11.0 x 6.6 cm. Classic for the locality, and unique among all the world fluorite locales, are these sharp purple zoned phantoms perched on striated baryte matrix. This piece has large crystals to 4 cm in size. You can clearly see dramatic color zoning within, deep purple horizons within the lavender crystal as a whole. The striated, vertical baryte blades are what really make these pieces transcend other purple fluorites though - the contrast is appealing on many levels. Interestingly, some small fluorites on the bottom half of the specimen are covered by what seems to be a later generation of drusy quartz overgrowth.
This specimen features a 4 cm stepped purple octohedron of exceptionally deep color, perched atop a glistening, jet-black, thick crystal of wolframite. It is very 3-dimensional, more so in person than it appears. The fluorite is pristine and undamaged and wraps around the top of the wolframite (though it does not continue down the backside, but rather terminates on a plane with the wolframite edge). 6 x 5 x 4 cm
The finest of the lot so far, this specimen features not only an unusually bright green color, but BIG crystals, the uppermost one measuring 3.5 cm along the front edge! The crystals, including the largest one, appear to be phantomed, with the grassy green color inside a layer of about 0.75 cm of lighter green. So, they glow from within! This would be a fine fluorite from ANY locality, but from a new and thus far very limited find, it is a particularly exciting and desirable specimen! It is a total aberration and has a color and lustre better than any other in the lots. We couldn't believe it, but there it is - too bad there wasn't a whole pocket of this type! 11.5 x 7.8 x 3.6 cm
3.8 x 2.9 x 1.8 cm. A rare, spinel-twinned fluorite crystal perched atop a zig-zag cluster of tan calcite crystals from the Naica Mine which has finally been productive again of late. A 1.7 cm much flattened, gemmy and lustrous, lavender fluorite crystal crowns this fine miniature. A striking, 1.5 cm, doubly terminated calcite crystal rests at the base of the spinel-twin.
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Rob Lavinsky, rob@irocks.com
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