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Fluorite from Iran (L.E.D. light) by bmah Fluorite from Iran (L.E.D. light) by bmah
Mineral(s): Fluorite
Locality: Komshejeh Mine, Ardestan County, Esfahan Province, Iran

Fantastic blue cubes of fluorite to 2.3 cm on edge with a hint of purple, on matrix. The edges of the fluorite crystals have stepped modifications, which gives them a unique appearance. The small white balls are either calcite or aragonite. This mine is a relatively new locality, and blue to purple fluorite has been coming out of this mine to the mineral markets lately, although only in a pretty small trickle due to the difficulty in importing any sort of goods out of Iran to the world market.

As with most fluorites of a blue color, the shade of blue changes depending on the type of light source, a mechanism known as metamerism. This photo was taken under L.E.D. bulbs, which is a bit cooler on the light spectrum, imbuing a slightly bluer tone and giving the fluorite crystals an electric blue color.
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May 2
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