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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Analcime, Tugtupite, Chkalovite - Greenland
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SKU: MSG1408
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Incredible specimen with full coverage. Bright blue analcime covers both sides of this rock varying from a deep blue to a light blue. Tugtupite along with chkalovite (the rarer pearly white variety Ð a classic example of how tugtupite replaces chkalovite) found throughout the matrix. The delicate veining on this material clearly illustrates tugtupite replacing chkalovite. Very unique material.
"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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