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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Plumbogummite After Pyromorphite - China
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SKU: MSW1504
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Blue plumbogummite and olive green pyromorphite. These pieces are found in a hydrothermal lead-zinc deposit, hosted in limestone and sandstone with granite intrusions. Two mines operate in the area and there might be some confusion about the exact mine - the Daoping and Yangshuo mines, connected underground.
Plumbogummite is a rare secondary lead phosphate mineral coating bright yellow-green pyromorphite crystals. Exceptional color under midwave (MW) UV, duller under SW, with no response LW. This is one of the few fluorescent mineral specimens that is absolutely best under MW. Add some SW if you like for added pzazz in the green areas. These pieces are VERY selective. Some don’t fluoresce at all.
"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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