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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Hackmanite, Calcite, Phlogopite, Diopside - Afghanistan
$450.00 USD
SKU: MSW1460
Weight and Dimensions
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Bright, multicolored specimen that is very phosphorescent. Nicely tenebrescent sodalite (hackmanite) fluoresces bright orange under longwave.
Calcite is very bright red under midwave, dimmer under shortwave. Phlogopite is a butterscotch yellow under shortwave. Diopside is bluish-white. The dim yellow brown under shortwave is possibly richterite.
We prefer displaying this specimen under fullwave (FW) meaning all wavelengths: shortwave, longwave and midwave - as that makes each corresponding mineral pop, but they are respectable under any wavelength.
These pieces are fresh mine-run material. They are not acid washed like most of the specimens found on the market. The sellers in Pakistan use acid to eat away the calcite, revealing crystals embedded in the matrix. This results in an artificial appearance and often eats away at other minerals.
"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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