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Mineral Specimens with Fluorite
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2.9 x 2.2 x 2.1 cm. Botryoidal fluorites have always been highly appreciated by collectors, because they are pretty and rare. The best known ones are probably the "fried-egg" ones from Nasik, India. These delightful PURPLE specimens were discovered in China during the past year. The one is in superb condition, and complete, with a fine translucent purple color. It measures just under 2 cm across, and sits on a carefully-trimmed matrix base.
13.7 x 10.9 x 6.1 cm. This large specimen of golden fluorite is from a very small batch we got early this year. We bought all there were, maybe 7 or 8 specimens, and no more have come out that we have seen since! They are VERY distinctive - a golden yellow to honey color, translucent-to-transparent - with the small cubes covering every bit of this large knobby matrix (and wrapping around in back, too). This one stands up perfectly and has such a nice display face!
9.2 x 7.4 x 2.7 cm. A plate of complex, intricately-stepped fluorite crystals, with good transparency and an unusual green color with a hint of blue, from Taolin (NOT one of those "big" fluorite finds in China, but quite limited).
13.9 x 12.7 x 9.9 cm. The reason you do not recognize this very large specimen as Bingham is that it is an OLD one. It is basically an inter-grown mass of very large, nearly colorless crystals (modifications of cubes, with intricate micro-stepping on the faces). Some really pretty, sparkly quartz decorates one side of the specimen. The translucent crystals measure up to 4 cm along the edge!
11.0 x 8.0 x 4.8 cm. A CLASSIC, OLD-TIME, early 1800s, CABINET fluorite plate from the famous Heights Mine of England. This fine piece features lustrous, glassy, interpenetrating fluorite cubes to 2.1 cm on limestone matrix. Typically, for Heights fluorites, the green cubes turn purple (natural fluorescence) in nearly all lighting conditions. Color change in outdoor, natural sunlight is particularly striking, as you can see. The fluorites really are green! SUPER fluorescence. Ex. George Elling Collection.
6.8 x 4.6 x 2.9 cm. A 2.0 cm, transparent, glassy and beautifully zoned purple fluorite cube nicely set in matrix and accented with a sliver of calcite from the famous San Martin Mine of Zacatecas, Mexico. Fluorites of this quality and form are VERY UNCOMMON from San Martin and this piece is highly representative of the species and locality, even with the cleaved fluorites.
22.7 x 16.8 x 5.3 cm. This is a huge plate of pink fluorite from the now-FINISHED finds in Mexico. We were lucky to have a relationship that allowed us access to the good specimens of this material. 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. Now these are ALL GONE - there are a few stragglers of very low quality still trickling around out there, but nothing close to this quality and size. These are wonderfully sharp and translucent crystals, and they measure to over 2 cm across. When backlit it glows with color better than most of these. What is more, there is some accenting matrix here, which is very uncommon. Finally, there is the sheer SIZE of this cabinet specimen! A large display specimen from the collection of Dr. Edward David of New Jersey.
6.4 x 4.3 x 3.5 cm. A super-complex crystal of fluorite from the recent finds at the classic old Naica locality - much prettier in person, because the green is brighter and more saturated, but just very hard to capture in pics. The fluorite is transparent in the interior; its faces are made up of hundreds of little dodecahedral and cuboctahedral forms - look at it through a loupe when you get it, it is fascinating! There is a bit of sphalerite attached.
6.9 x 6.3 x 3.4 cm. This is one of a variety of specimens from this BRAND NEW find at the Okarusu - many different colors and types, a broader array than has ever been seen from the mine! This one is a gorgeous bright transparent green. The main crystal is REALLY big for this mine - measuring over 3.5 cm along the edge. In strong light, it absolutely lights up and glows! That irregular edge is actually natural faces and not contact!
1.3 x 1.1 x 0.9 - x 0.9 x 0.5 x 0.4 cm. Yes, Argentina DID produce some fluorites a few years ago - though you very rarely see them on the market, as they are very scarce. Still, these little guys are of very high quality - gemmy dodecahedrons with a pretty, silky surface and Brandberg-quartz-like blushes of purple inside. Pretty and interesting locality specimens for a fluorite collector!
14.4 x 8.3 x 5.3 cm. A LARGE plate of purple fluorite from the new finds at the Okarusu. There is no matrix here - this is basically a crust of solid crystals that formed on the smooth underlying matrix and then was removed intact! There are hints of green and yellow in some of the crystals. The largest crystals measure over 2 cm on edge. Very impressive!
4.2 x 3.9 x 3.0 cm. Look at the transparency of these super Illinois fluorites! They are perched beautifully on the matrix of sphalerite. The fluorites measure to 1.5 cm; they are in fine condition save for a couple of tiny contacts, which as you can see do not detract much at all from the beauty of this specimen.
6.4 x 4.6 x 3.5 cm. A showy and excellent combination specimen from the very famous and now-closed Sweet Home Mine of Colorado. Very glassy, cuboctahedral fluorite crystals to 6 mm are nicely scattered on needle quartz with cherry-red rhodo rhombs and a patch of sulfides, all on quartz matrix. The fluorites make this a distinctive and desirable specimen.
5.4 x 3.9 x 3.3 cm. Sunnyside Mine (Colorado) rhodos are American classics that usually only turn up one at a time, from old collections. Here is a cluster of tightly intergrown rhombs on light green fluorite, with a layer of little barites frosting the rhodos. Two of the rhodos have been etched into cast-like forms.
10.8 x 8.8 x 7.8 cm. An EXCEPTIONAL and AESTHETIC Okarusu Mine CABINET specimen. This beauty is PRISTINE, front and back, and has only one small point of attachment at the base. This superb piece features lustrous, glassy to lightly frosted, fluorite cubes to 2.1 cm. The dominating, large cube on the upper right skyline and the unique stalk of fluorite cubes in the center are striking features. The green cubes have lovely purple highlights, but as with many English fluorites, the green cubes turn purple (natural fluorescence) in nearly all lighting conditions. Color change in outdoor, natural sunlight is particularly striking, as you can see. Good purple fluorescence. An UNCOMMONLY FINE, large, 3-dimensional specimen for Okarusu, previously in the Namibian general collection of Marshall and Charlotte Sussman.
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Rob Lavinsky, rob@irocks.com
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