Calcite - Mexico
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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.
Willemite, Calcite, Fluorite from the Garpenberg Mine in Sweden
The Garpenberg mine is located in Bergslagen, a very old mining area in the southern part of Sweden.
The mine is very active today and is one of Europe's most progressive underground mining operations. Collecting is not possible, and the few specimens that reach collector's hands are highly prized. The mineralogy is quite similar to that of Franklin NJ.