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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Tugtupite Crystals, Chkalovite - Greenland
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SKU: MSJ0379
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An incredible, unusual gemmy and extremely tenebrescent tugtupite specimen from Kangerlussaq. Vugs with large and well-formed, gemmy tugtupite crystals – these kind of tug crystals are distinct to Kangerlussaq. In the middle of one side is some beautiful green chkalovite (some in crystal-form, it seems) coating some of the large tugtupite crystals within the vug. Not many pieces like these will ever hit the market.
Under midwave this piece glows all sorts purple-lilac, magenta, red colors. It also displays phosphorescence.
The brownish areas are still considered tugtupite.
The second side has some sodalite or hackmanite which shows as the purple tenebrescence versus the typical deep pink tenebrescence from tugtupite.
Museum quality. An outstanding tugtupite specimen.
"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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