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Join date: Sep 3, 2020
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Feb 23, 2017 ∙ 1 min
Yellow Zincite, Willemite, Calcite, Sphalerite - Sterling Hill NJ
Yellow zincite strongly fluorescent under longwave 365nm, with willemite and calcite. The blue fluorescence is strongly phosphorescent. ...
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Feb 2, 2017 ∙ 1 min
Prosopite, Thomsonite, Ralstonite from Ivigtut, Greenland
Prosopite can forms as an alteration product in cryolite-bearing pegmatites, either as a primary mineral or as an alteration product of...
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M Cole (Howie G. collection)
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