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Mineral Specimens with Fluorite
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A large, very fine plate of fluorite from Okarusu, with good transparency and fine purple/green color. The sharp, lustrous crystals measure to just under 2 cm on edge. Aside from a couple of unobtrusive cleaves, the specimen is in fine shape in the main display area. The thinner areas are solid fluorite (not matrix) and actually let the light through, outlining and defining the 3-dimensional areas of piled-up crystals. In half-decent light, this specimen just comes alive. If you''re the winning bidder, when you get this specimen, just hold it up and let the light get to it - the photo does not nearly do it justice. 10.7 x 9.6 x 3.6 cm
A VERY large and impressive Minerva Mine fluorite of the classic yellow, with big, sharp crystals to 4 cm on edge! Except for one rough growth contact area on a crystal and a few insignificant dings, the crystals are in fine condition. They are generally so sharp on the edges that you have to watch your fingers, and remember the yellow color is much more rare - I love this variety of Illinois fluorite! 13.0 x 10.2 x 6.4 cm
A tower of wonderful purple cubes to 2.5 cm on edge. Aside with one shallow ding on the edge of one crystal, the display face is free of damage. 7.9 x 5.9 x 4.8 cm
A LARGE plate of FINE crystals of the classic Blanchard teal blue, to one centimeter, with very little damage apparent anywhere. Big and super-impressive! 15.5 x 11 x 4.5 cm
10.6 x 7.8 x 2.4 cm. Until these lustrous, translucent, pink fluorites were discovered in Mexico, Peru and the Alps were the only sources for pink fluorite. These octahedrons measure up to 2.0 cm, and have vivid, deep pink color against the beautifully contrasting white matrix. And both the fluorites and white matrix are wonderfully translucent.
9 x 7.9 x 4.5 cm. This calcite, doubly-terminated and in a cluster of smaller calcites, somehow become attached one of those usually floater etched fluorite corners, formed from strange chemical processes in which large cubic fluorites from this mine sometimes decay into 4 corners that then come apart and fall gently into the pocket over time. Somehow, the corner must have gently landed on this calcite as it was forming, as the two are intergrown and totally attached. The fluorite must have formed long before, thus. This fluorite corner is complete and features the full stalk into what would have been the center of a cube. It has the sharp corner, however, remaining. Ex. Dr. Steve Smale Collection.
10.9 x 10.2 x 7.3 cm. A stunning and very unusual "windowpane" fluorite from Elmwood, from a bizarre pocket where the solution etching effects common at the mine have worked only around the edges, leaving a bright and gemmy core with sharp faces that is also window-clear, so you can look right through the crystal. The combinaiton of sharp, hard lines on the top half of the crystal fading subtly to etched edges and softer edges on the other sides is very aesthetic. The color also subtly changes from yellowish to lavender throughout. It is a really complex specimen, though at first glance it look slike just a simple single crystal. It is a floater, technically complete (due to microcrystallization on the back) all around. In person it is very transparent, and gemmy. Ex. Jack Halpern and Cliff Krueger Collections.
10.0 x 9.0 x 6.5 cm. A rich purple-zoned, translucent fluorite, to 4.5 cm across, is emplaced on sugary white baryte and a doubly terminated, glassy, tan crystal of calcite, 7.0 cm across. The piece is remarkably terminated all around because it fell from the pocket well at one time, and then secondary microcrystallization covered over the backside, so that this is really a floater now.
5.2 x 4.8 x 4.7 cm. Two nearly equant, translucent, rich, lavender colored crystals of fluorite, to 2.5 cm across are perched on crystals of splendent, black sphalerite.
6.7 x 6.0 x 4.4 cm. Several cubes of translucent, pastel purple fluorite, to 3.0 cm across, are perched on sphalerite with orange highlights. The specimen is nearly pristine.
7.0 x 6.6 x 5.8 cm. A large, single crystal of translucent, rich purple fluorite, measuring 4.5 cm across, sits on a matrix of splendent sphalerite with orange highlights.
9.1 x 8.0 x 5.3 cm. A matrix of translucent, red-flecked sphalerite with crystals to .7 cm across is the host for two large, translucent, pastel purple cubes of fluorite, to 4.2 cm across. The fluorite crystals have varying luster and the large crystal even has a few colorless calcite crystals on it that reach .4 cm across. The fluorites are very interesting and unusual in that they are so colorless - few fluorites from this locality are not some shade of deeper purple.
5.2 x 4.9 x 4.5 cm. An equant, almost 3.0 cm across, fully-terminated, translucent, purple cube of fluorite is aesthetically perched on splendent, black sphalerite crystals.
5.8 x 4.4 x 3.5 cm. An aesthetic and excellent fluorite specimen from the recent, very highly touted finds at Riemvasmaak, South Africa. Gemmy and lustrous, unique, light grass-green fluorite cuboctahedrons to 2.5 cm are beautifully clustered on the starkly contrasting, 3-dimensional quartz crystal matrix. The fluorites are pristine on this specimen. Cuboctahedrons are much rarer than normal octahedrons from this find. The crystals are also fabulously accented, as some of the lightly frosted faces are etched, presenting a dramatic effect. Excellent purple fluorescence.
5.5 x 5.5 x 4.6 cm. An excellent, large and sharp, color-zoned fluorite cube from the Okorusu Mine of Namibia. This translucent and lustrous specimen has outstanding emerald-green color superbly accented with purple highlights, mainly at the corners. The striking, diamond-shaped, etched face is extremely attractive. This very fine, complete-all-around, older crystal from the 1980s-early 90s finds is from the Wesley Stark Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Fluorite from Okorusu Mine (Okarusu Mine), Otjiwarongo District, Otjozondjupa Region, Namibia [db_pics/mdpics/MD-24615a.jpg]](db_pics/mdpics/MD-24615a.jpg)
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![Fluorite, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-246472a.jpg]](db_pics/mdpics/MD-246472a.jpg)
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