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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Calcite, Fluorite - Arizona
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SKU: MSJ0416-105
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A striking combination of red fluorescent calcite and blue fluorite from the Pure Potential Mine in La Paz County, Arizona.
The Pure Potential Mine, also known as the North Geronimo Mine, is located north of Yuma, Arizona. No longer active, it is a former underground operation that produced lead, zinc, silver, molybdenum, vanadium and fluorspar. Specimen mining still takes place at the Pure Potential Mine under private claim.
"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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