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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Red Sodalite (Hackmanite), Uranyl Green - Greenland
$500.00 USD
$650.00 USD
SKU: MSG1544
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"Red" sodalite is found in one area along the southern shore of the Tunuliarfik Fjord. It is named because the almost colorless sodalite turns a nice reddish color when exposed to sunlight. Exposed to shortwave UV (UVC) it deepens to a grape purple (tenebrescence). The color is faded by exposure to any UV free white light, and can be repeated indefinitely. (See the animation picture)
Under SW UV the colors on this piece really make for an interesting specimen. Bright green fluorescence is uranyl activated while the blue fluorescence is from an unknown mineral. The sodalite starts out a nice bright orange and deepens to a rust color as the tenebrescence sets in. Under LW the whole pieces fluoresces a nice bright orange.
"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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