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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Leucophanite - Norway
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SKU: MSW1540
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Leucophanite is only found in a handful of places around the world. To the best of our knowledge only Norway produces massive habit leucophanite with large display specimens. They are bright and beautiful, best under midwave but great shortwave UV. We rarely see pieces of any size. On one side under shortwave UV, you can see yellow fluorescing zircon.
"Leucophanite is an inosilicate mineral with the chemical formula (Na,Ca)2BeSi2(O.OH.F)7. It may contain cerium substituting in the calcium position.
It occurs in pegmatites and alkali igneous complexes as yellow, greenish or white triclinic crystals and has been found in Norway, Quebec and Russia.
It was first described from the Langesundfiord district of southern Norway in 1840. The name is from the Greek leucos for "white" and phanein for "to appear" in allusion to the common white color. "(Wikipedia)
"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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