Quartz Crystals on Calcite - San Antonio Mine, Chihuahua, Mexico
Small delicate crystals of bright green fluorescing quartz are peppered around a matrix of calcite on this striking specimen.
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Calcite - Mexico
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SKU: MSJ0387
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A large, gemmy cleavage rhomb of “terlingua-type” transparent pink calcite from Challenger Cave, Nuevo Leon, Mexico. The famous Challenger cave is a series of caverns that have been a source for these clear calcite rhombs.
Very bright and reactive to all UV wavelengths – pink under longwave, peach/white under midwave and bright blue/violet under shortwave.
There is also a nice long-lasting phosphorescence under shortwave UV, a big shorter under longwave. You don’t see longwave phosphorescence very often.
"Red" Sodalite (Hackmanite) - Deeply Tenebrescent Greenland Mineral
Red sodalite is named for the color it takes on when exposed to sunlight; it is nicely tenebrescent under longwave UV. Under shortwave UV the color deepens, in seconds, to almost black in some areas.
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A Short Study on Rare Occurrences of Apatite from the Ilimaussaq Complex, Greenland
Rarest of the rare from Greenland - apatite has only been observed in a handful of pieces over the decade+ we have been exploring Greenland. Blue apatite crystals fluorescing under UV.
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