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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Sodalite, Ussingite, Minor Tugtupite, Polylithionite - Greenland
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SKU: MSG1530
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This specimen has a mix of non-fluorescing ussingite and bright fluorescent sodalite. There’s also minor tugtupite veining and polylithionite. We found very little of this type of material.
Ussingite from Ilimaussaq has three possible states: it can be non-fluorescent, fluoresce orange just like sodalite, or can fluoresce green. When ussingite fluoresces a more common orange, it is due to being mixed with sodalite. It is slightly tenebrescent where the sodalite has mixed with the ussingite.
"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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