#terlingua calcite
Terlingua Calcite from the Little 38 Mine in Terlingua, Texas. All of the fluorescent minerals in this rock are calcite. Shown under long wave ultraviolet, mid-wave ultraviolet, short wave ultraviolet and white light. This one weighs over 8 pounds.
Terlingua Calcite from the Little 38 Mine, Terlingua, Texas. Pictured under long wave, mid-wave, and short wave ultraviolet and white light.
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Terlingua Calcite on the left and fluorapatite from Wana, South Waziristan, Khyber-Pakhtunkhwa (formerly NWFP: North-West Frontier Province), Pakistan on the right. Shown under short wave ultraviolet, long wave ultraviolet, mid-wave ultraviolet, and white light. It’s interesting to me that they have opposite pink vs. blue responses to short wave vs. long wave UV.
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