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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Apatite, Siderite, Quartz, Arsenopyrite - Portugal
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SKU: MSW1491
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Nicely formed apatite crystals brightly fluorescent under shortwave and midwave UV light. Many of the smaller crystals have complete terminations on the sides.
The Panasqueira Mine in Portugal is a classic locality known for its exceptional apatite specimens – some of the best of its kind.
"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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