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Mineral Specimens with Fluorite
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9.5 x 8.2 x 5.9 cm. A big, rich specimen from the now-closed Elmwood, featuring over a dozen limpid purple crystals of fluorite on a mound of crystalline, deep red sphalerite. The fluorites have this superb silky luster you sometimes see in these, that is so desirable. The largest crystal measures 2.8 cm, and has a distinct phantom in it, which is uncommon for Elmwood!
5.4 x 3.9 x 2.5 cm. This association is of course common from the Yaogangxian, but I have never seen one quite like this. Where you will sometimes see purple fluorites and arsenopyrites on jumbly clusters of quartz, here a gemmy fluorite and a cluster of sharp arsenopyrites sit side-by-side on a clean matrix. A unique specimen even for this prolific locality!
7.8 x 5.9 x 4.3 cm. Here is a WHOPPER fluorite crystal, over 7.5 cm along the edge, with the classic pebbly surface and pretty purple color, from the now closed Elmwood Mine. The attachments are sphalerite (the zinc ore that was the reason for the mine). Except for one tiny, almost invisible nick, the corner modifications you see are natural, and are not damage! The back of the crystal is the contact where the crystal was removed - you do not see any of this from the front of the specimen.
8.0 x 5.9 x 4.2 cm. You do not think of Los Angeles as a mineral locality, and that is part of what made these green fluorites so cool when they came out. Here is a transparent, pretty 2-cm crystal, isolated on matrix (many did not have matrix). Found in the late 1980s or early 1990s.
8.7 x 6.4 x 4.9 cm. This specimen is SO much better in person - the camera just could not do it justice. What you have is these silky cuboctahedrons of green fluorite that have wrapped themselves around a column of super-sparkly, snow-white quartz. Striking and beautiful, and sizeable too!
10.8 x 5.9 x 4.5 cm. You can display this Chinese combo specimen from either side, depending on whether you want to view the solid cluster of fluorite crystals or a rim of fluorites around a field of milky quartz. The cuboctahedral fluorites have silky surfaces resulting from a myriad of tiny stepped microfaces. They measure to just over 3 cm across.
5.0 x 3.5 x 3.4 cm. Extremely glassy and transparent, golden-yellow fluorite cubes to 2.3 cm aesthetically clustered on a bit of limestone matrix from the famous May Stone and Sand Quarry at Fort Wayne, Indiana. The one lightly contacted edge is certainly not a detraction to this beauty.
9.4 x 7.2 x 2.9 cm. An excellent and showy, old-time English combination plate of glassy, light lavender, interpenetrating fluorite cubes richly covering limestone matrix and nicely accented by chalcopyrite-covered sphalerite crystals from the famed ore fields in Derbyshire. The chalcopyrite microcrystals have a nice, golden iridescence and are on both the sphalerite and fluorite. This old-timer comes from an old European collection, where everything dates to the 1800s. This whole collection had myriad old materials, though I cannot name the owner, and was well known in Europe. Accompanied by an old German label. A pristine old-timer.
4.8 x 3.3 x 3.3 cm. Two crystals of glassy and gemmy, pastel blue fluorite, to 2.5 cm across, are on a sliver of matrix. From the James E. Moresby White collection. Extremely cute miniature! Ex. Carnegie Museum Collection.
7.8 x 6.8 x 3.0 cm. Lustrous, tetrahedral sphalerite crystals are richly scattered on limestone matrix covered with glassy, light purple fluorite cubes on this fine old-time combination piece from England. The fluorite cubes resemble the previously described Derbyshire piece and we believe this piece to be from the same area. This old-timer comes from an old European collection, where everything dates to the 1800s. This whole collection had myriad old materials, though I cannot name the owner, and was well known in Europe. Accompanied by an old German label.
4.0 x 3.5 x 2.5 cm. An aesthetic cluster of transparent, golden-yellow fluorite cubes from a recent find at the Pivoul Mine, Lozere Dept., France. The largest cube is 2.0 cm and some of the crystal faces are preferentially frosted. Very minor edge wear is certainly not detracting. Moderate purple fluorescence.
9.5 x 8.0 x 6.0 cm. An imposing specimen of totally gemmy, bi-colored, light sea-green and colorless, cuboctahedral fluorite crystals. Crystals reach 4.5 cm. Some crystals have distinct, stepped-growth faces and the piece is nicely accented by a bit of sphalerite. Many of the cuboct crystal faces are lightly frosted, but some are water-clear, giving a neat television-like view in to the crystal interior. From the recent find at Naica.
4.6 x 1.2 x 1.0 cm. A UNIQUE and UNUSUAL quartz find now gone and done with, with specimens hard to get today after 2 years out on the market! A pristine, complete all-around, lightly frosted, water-clear quartz crystal is included with crudely crystallized dark blue/purple fluorite. This showy piece is from a most unlikely locality for fluorite - Madagascar!
6.8 x 6.3 x 3.2 cm. BEAUTIFUL, water-clear, lavender fluorite cubes with entrancing violet edge phantoms are aesthetically clustered on a plate covered with tiny, amber calcite crystals on this very showy and excellent specimen from La Cabana, Berbes, Spain. The penetration-twinned fluorite cubes reach 1.5 cm and all of the major crystals are damage-free. The whole piece has a very sculptural look to it. A classic Berbes fluorite specimen valued quite highly.
16.5 x 9.9 x 5.8 cm. A large plate of sharp, euhedral crystals of light creamy pink crystals of microcline, with small crystals of light gray/green albite, and on the edge of the specimen, two translucent, light purple octahedrons of fluorite. The larger of these two fluorites measures 1.7 cm along the edge. From a small private collection of long-collected Argentine minerals built up by a US expatriate down there.
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Rob Lavinsky, rob@irocks.com
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share specimen![Fluorite, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-156096a.jpg]](db_pics/mdpics/MD-156096a.jpg)
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