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Mineral Specimens with Fluorite
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9.5 x 7.9 x 2.9 cm. An EXCEPTIONAL specimen from the now-finished mining of these pink fluorites. Until these pink fluorites were discovered in Mexico, Peru and the Alps were the only sources for pink fluorite, and the cost of a specimen such as this was (and still is) astronomical from those localities. This specimen stands out from 98% of the rest of the find in that the crystals are ISOLATED on the matrix, rather than massed together wall-to-wall. It was very difficult to come by specimens such as this, which are obviously the most desirable specimens from the find. The crystals themselves have fine deep pink color, and measure to 1.5 cm.
4.9 x 3.2 x 2.8 cm. These sensational green fluorites are from a find in South Africa. This specimen has the best color for the find, and sharp crystals (to 2.5 cm) with fine translucency. There is a little bit of damage, but overall the specimen is in very good shape.
4.9 x 3.4 x 2.9 cm. This is a single, LARGE (for the find) cuboctahedral crystal, with just a bit of attached matrix, alternating frosty translucent faces with pebbly ones. The crystal is complete and undamaged except for the back and bottom, where the contacts were, with a couple of cleavage faces there.
4.4 x 2.9 x 1.8 cm. More "different" Erongo material - this, a cluster of small, very bright green, rounded crystals of fluorite.
4.9 x 4.4 x 3.4 cm. From Erongo, this is a cluster of complexly intergrown, transparent, honey-colored crystals of fluorite.
3.6 x 3.4 x 2.9 cm. A UNIQUE and showy combination specimen from recent finds at the Wudong Mine of China. A gemmy and lustrous, 8 mm, bi-colored, tan and colorless, apatite crystal sits front and center on cherry-red rhodochroite rhombs, purple fluorite cubes, quartz and a dusting of brass-yellow pyrite cubes. Certainly an unusual and rare specimen from this up and coming locality.
10 x 9 x 4.5 cm. While fluorites of this style from Dal’negorsk often appear with quartz, it is very unusual for larger, isolated quartz crystals to be intimately intergrown with the fluorites, as here. In fact, you even have quartz crystals spiking right through the fluorites! The fluorites are modified cubes with clear windows framed by frosty bevels; they measure to 3 cm.
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!
8.8 x 7.8 x 4.5 cm. This is a weird cluster of highly modified, translucent yellow fluorite crystals, intergrown with microcrystalline quartz.
4.5 x 3.9 x 2.8 cm, 1.9 x 1.7 x 1.7 cm. This is a set of two Erongo fluorites. The larger one is a plate of translucent green crystals, the larger one measuring 2.4 cm along the edge. The crystals are razor-sharp, and the trim job is perfect, with a fine balance to the specimen. The thumber is fascinating: a cube of intense green ENCLOSING a cuboctahedron highlighted with purple! Two other cuboctahedra are intergrown with the side faces of the cube.
5.9 x 5.1 x 3.1 cm. STUNNING glassy blue crystals of fluorite, with gorgeous bevels and internal blushes of accenting purple, from Naica! This is not from the recent finds at Naica, which were primarily clear to green crystals associated with sphalerite. This cluster of crystals was removed completely from the matrix, so it is all fluorite.
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.
7.5 x 6.9 x 4.5 cm. This is a specimen of UNUSUALLY large octahedra of green, translucent fluorite; that one in the center measures over 4 cm across the middle. The main faces are covered with hundreds of tiny microfaces. This very unusual Erongo piece came out of the collection of Marty Zinn.
9.2 x 7.3 x 3.3 cm. Another FINE Marty Zinn piece - a specimen of Blanchard Mine fluorite of the classic "Blanchard Blue" color, with an extremely uncommon and beautiful structure to it: the crystals run through the middle of a matrix of sparkly, snow-white quartz. Blanchard specimens are normally much more "jumbly" than this very aesthetic specimen. What is more, the crystals are BIG - the central one measures 2.3 cm in each direction, which is extremely large for the Blanchard.
4.4 x 3.2 x 2.3 cm. A KILLER mini of Moroccan yellow fluorite trimmed out with just the right amount of accenting barite matrix. The sharp fluorite crystal measures right at 2 cm across. Ex. Alain Martaud fluorite collection.
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Rob Lavinsky, rob@irocks.com
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