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Mineral Specimens with Fluorite
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11.4 x 8.4 x 5.9 cm. A rare specimen from the mid-70s at the Mex-Tex Mine. This is a large cluster of highly-modified crystals of light purple fluorite -- with hundreds of stepped microfaces wrapped around what appear to be cuboctahedral forms -- with a large(4-cm), complete crystal of galena placed right in the middle of them. Ex.. A. Martaud Collection.
10.4 x 9.9 x 3.5 cm. With fine deep pink color and translucency, these fluorite octahedrons measure up to 1.8 cm on edge.
2.4 x 2.3 x 1.9 cm. A fine crystal of Berbes fluorite, which at one point came loose in the pocket, allowing the broken faces to "heal" and form faces, so that it is now technically a complete floater. You can see the marvelous banding of dark purple lines towards the periphery. Ex. A. Martaud Collection.
4.2 x 3.2 x 2.0 cm. This fine piece from the Nikolaevskiy Mine features two, pristine, well-placed "invisible" fluorite crystals on matrix. The crowning cuboctahedron, at 1.5 cm, has sharp, modified corners. Ex Alain Maurtaud Collection.
9.5 x 8.3 x 4.7 cm. Two superb, sharp, purple fluorite cubes with outstanding phantoms exquisitely set on very 3-dimensional, sparkly quartz crystal matrix from the famous, but less well-known Deardorff Mine of the Illinois Fluorspar District. The large cube is 3.3 x 3.2 cm. Ex. George Feist Collection.
13.3 x 8.1 x 5.5 cm. This piece is said to have come out in the 1920s-1930s. It features a huge end-crystal perched on a stalk of smaller, more gemmy and bright, crystals that are all a rich purple color and highly attractive. Ex. Eric Asselborn Collection.
7.2 x 5.0 x 3.8 cm. This is a fine Okorusu fluorite dating to the 1980s. Ex. Eric Asselborn and Francis and Patricia Benjamin Collections.
12.0 x 4.8 x 3.3 cm. Bright green octahedra of fluorite isolated on a matrix of stark white contrasting quartz, from the Orange River.
2.2 x 1.8 x 1.4 cm. A glowing deep green crystal of fluorite from a locality much better known for its aquamarines and schorls - complete (with natural contact face and a bit of mineral attachment) on back.
8.9 x 5.9 x 5.9 cm. A very different-looking Orange River specimen, in that it is more about structure and overall aesthetic form than crystal size. It features two interconnected sheets of matrix that are covered on all sides with transparent octahedra of fluorite.
3.9 x 3.2 x 3.1 cm. From finds in 2004, a fluorite crystal on matrix characteristic of the finds at that time, with a silky luster, clear interior, and in the form of a cube modified by the octahedrons (creating the bevels on the edges). The crystal measures 1.7 cm. Ex. A. Martaud Collection.
15.4 x 12.9 x 6.5 cm. A big plate of gemmy golden-yellow crystals of fluorite, razor-sharp, from Spain. The crystals measure to 1.2 cm on edge. They have a superb glassy luster. Adding a pretty contrast and accent to the plate are clusters of milky dolomites with clear calcite cubes.
3.9 x 2.9 x 2.3 cm. These crystals are not only unusually gemmy and bright, but are clear enough to show fine zoning, including green cores and pretty teal bands just inside the faces. Ex. Alain Martaud fluorite collection.
8.2 x 7.7 x 4.8 cm. There are crystals on this specimen to 4.5 cm across. They have wonderful bright green color that is distinctive to this find - it is easy to recognize where these are from, despite all the varieties of green fluorite around the world. These crystals also have excellent transparency.
5.5 x 3.7 x 1.7 cm. A gorgeous and aesthetic, S-shaped cluster of extremely gemmy, emerald-green fluorite cuboctahedrons accented with purple highlights and crystal interior color zoning from recent finds at the Erongo Moutains of Namibia. The bit of white feldspar matrix is a very nice compliment.
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Rob Lavinsky, rob@irocks.com
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share specimen![Galena, Fluorite from Mex-Tex Mine, Bingham, Hansonburg District, Socorro Co., New Mexico, USA [db_pics/mdpics/MD-177282a.jpg]](db_pics/mdpics/MD-177282a.jpg)
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![Fluorite from Nikolaevskiy Mine, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-178660a.jpg]](db_pics/mdpics/MD-178660a.jpg)
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![Fluorite from Riemvasmaak, Kakamas District, Northern Cape Province, South Africa [db_pics/mdpics/MD-178727a.jpg]](db_pics/mdpics/MD-178727a.jpg)
![Fluorite from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-178893a.jpg]](db_pics/mdpics/MD-178893a.jpg)