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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.
