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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Blue Sodalite - Greenland
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SKU: MSG1540
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A nice piece of gemmy blue sodalite. The blue sodalite on this piece is very tenebrescent and changes color when exposed to UV (SW), darkening to a light purple - a unique hue compared to other Greenland sodalites due to the natural blue coloring. Under SW it starts out orange but quickly shifts to a rusty color due to the tenebrescence (see animation below to view the tenebrescent change).
The natural color is a beautiful blue - one of the only blue sodalites which is strongly fluorescent, not to mention slightly tenebrescent.
Many Greenland blue sodalite specimens also contain steenstrupine - a uranium crystal found in Greenland. It is less radioactive than your kitchen's granite countertop, but still a sought after mineral.
"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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