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Mineral Specimens with Fluorite
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20.0 x 17.0 x 8.7 cm. A fine, large cabinet fluorite specimen from Conway, New Hampshire. The translucent, frosted, grayish-tan cubes reach 6.0 cm on this excellent piece and the fluorite is nicely accompanied by a field of quartz crystals on one side. For such a large piece, the fluorites are in super condition. Excellent purple fluorescence. Ex. Robert Whitmore Collection.
12.8 x 6.4 x 4.8 cm. A classic, old-time, cabinet specimen of yellow fluorite crystals accented with bladed, brown siderite crystals from the historic mines of Cumbria, England. The glassy, nearly transparent, interpenetrating cubes reach to 2 cm and totally cover the elongate, sculptural specimen. Yellow English fluorites are relatively uncommon compared to purple and green fluorite and this is an large example. Superb purple fluorescence. Ex. Robert Sullivan Collection, an East Coast miner/collector.
8.5 x 8.0 x 6.8 cm. This is a very large, and yet aesthetic, specimen of scheelite from the classic old locality at this tin mine. Scheelite from this location is highly desirable for its rarity and size, and yet extremely uncommon on the market today. It is probably 50 years or more out of the ground. The specimen features a single, huge scheelite with attached quartz, purple fluorite clusters, and a small gem green fluorite cube at the lower-right. It has excellent display "horizons" and shows dramatically. The front and sides are pristine; the back contacted flatly where it had been growing against matrix in the past. Ex. Dr. Steve Smale Collection.
4 x 3.8 x 2.7 cm. This pastel green, sparkling fluorite exhibits unusual penetration twinning that appears to be the product of two spinel-twinned crystals exhibiting some complex intergrowth between themselves. I don't know for sure, as I’ve seen anything like it. The twinning actually appears to be more like cinnabar, which often exhibits star-shaped radial twins. The fluorite crystal is almost 4 cm in length so this is a full miniature, and it is complete-all-around as well as perched on a small bit of muscovite matrix. Ex. Dr. Eugene Meieran Collection.
16.5 x 8.4 x 4.8 cm. These fluorites came out in modest numbers for only a short time, then became scarce and expensive (see recent Min. Record China issue for more on these). It is quite hard now to find nice-looking, undamaged crystals on matrix, and the Chinese dealers value them highly. This fine, 3-dimensional, large cabinet specimen has translucent, green octahedrons to 4.5 cm with pretty purple highlights. This excellent piece is essentially damage-free.
5.6 x 4.5 x 4.5 cm. Two glassy, transparent, interpenetrating, green fluorite cubes to 1.4 cm dominate the crest of this fine mounded specimen covered with smaller fluorite crystals and a few, sharp and rounded, moderate-lustre galena octahedrons from recent finds at the Rogerley Mine. The large galena is 1.2 cm. The two large, water-clear fluorites have super purple, natural fluorescence. A highly representative example of the species and noted locale. Ex. Wes Parker Collection.
12.0 x 8.8 x 3.4 cm. A fine and sculptural cabinet plate covered with sharp, highly lustrous, flesh-pink-colored dolomite rhombs and very nicely accented on the edges with brassy pyrite cubes and a bit of purple fluorite. The mounds of dolomite rhombs give the piece excellent 3-dimensionality. Dolomite crystals of this size and quality are uncommon from the well-known Shangbao Mine.
6.3 x 3.8 x 3.4 cm. A fine cluster of rich green, lightly frosted, translucent fluorite cubes with beautiful purple highlights from the Okorusu Mine of Namibia. The bright, frosted lustre really gives the fluorites a wet-look. The large cube is 1.9 cm. Highly representative material from this well-known locale.
16.4 x 10.2 x 7.0 cm. This is a really large and fine specimen from the finds of pink fluorite in Mexico. Until these lustrous, translucent, pink fluorites were discovered in Mexico, Peru and the Alps were the only sources for pink fluorite. These octahedrons are very large, measuring up to 4.2 cm, and have vivid, deep pink color against the beautifully contrasting white matrix. Moderate purple fluorescence.
9.3 x 7.2 x 4.5 cm. Transparent, glassy, color-zoned, honey-brown fluorite cubes to 1.7 cm and a rich sprinkling of colorless calcite rhombs cover the sculptural matrix on this fine upright specimen from a historic English mine and district - St. Peter’s Mine, Northumberland. This is a rare locality from which specimens are rarely available. Most are said to be from the 1800s. Superb purple fluorescence on this highly representative combination piece.
6.9 x 6.6 x 4.9 cm. Sparkling ruby-jack sphalerite microcrystals preferentially and richly dust two intergrown fluorite cubes from the Elmwood Mine. The translucent cubes are very faintly yellow and have faint purple highlights and the lustrous, stepped-growth faces have a striking, cross-hatched pattern. Top it off with the ruby-jack sphalerites and you have a very fine specimen from this renowned locale. Nearly colorless fluorites, such as this, are not that common from Elmwood.
5.3 x 4.9 x 3.9 cm. Classic, distinctively color-zoned fluorite specimens such as this from Southern Illinois are amongst the most desirable US fluorites. Transparent and lustrous, sharply color-zoned purple fluorite covers the translucent, golden-amber core of this fine specimen. The edges and faces of the two presentation faces are pristine. Highly representative of the species and locale.
5.3 x 5.0 x 2.4 cm. A fine mounded example of the gorgeous apple-green, translucent octahedrons of fluorite from Grant County that have a look all their own. They have a smooth, melty-looking surface, and yet form well-defined octahedrons. The large octahedron on top is 2.5 cm. Complete-all-around. They really light up and glow a beautiful green color under good light.
24.8 x 18.0 x 16.0 cm. Lustrous, translucent, stepped-growth face, purple fluorite cubes with pretty, darker purple outlines cover this impressive, 3-dimensional, large cabinet specimen from an uncommon locale near the Mina Ojuela of Mexico - the El Filo Mine. The cubes reach 3.3 cm and the large knob of fluorite cubes is dramatic. Highly representative and very showy large material from this less well-known locale. Excellent purple fluorescence. Weighs 14.8 pounds or 6.7 kilograms. Ex. Dave Stoudt Collection, acquired in 2002.
13.3 x 6.4 x 5.6 cm. A stunning, very rare, multiple crystal, cabinet specimen of unique and unusual quartz from a one-time, 2005 find in Madagascar. Specimens are very hard to get today. Purple fluorite octahedrons to 5 mm are richly and attractively included in large, dramatic, intergrown, lightly frosted, transparent quartz crystals on a matrix of smaller quartz crystals. The beautiful, sharply terminated spires are complete-all-around. One of the best pieces from this very small find.
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Rob Lavinsky, rob@irocks.com
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share specimen![Fluorite from Conway, Carroll Co., New Hampshire, USA [db_pics/mdpics/MD-253955a.jpg]](db_pics/mdpics/MD-253955a.jpg)
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![Fluorite, Siderite from Cumbria, England, UK [db_pics/mdpics/MD-253991b.jpg]](db_pics/mdpics/MD-253991b.jpg)
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