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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Nuummite Oval Cabochon - Greenland
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A beautiful, small cabochon of authentic Greenland nuummite that contain a glossy, rich, black color.
Nuummite is a gemstone formed from a mixture of two minerals from the orthoamphibole group: anthophyllite and gedrite.
Geologically speaking, nuummite is of volcanic origin and was formed about 3 billion years ago. Subsequent influences on the rock (metamorphism) have given rise to the striking mixture of crystals which gives nuummite its unique appearance
"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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