Calcite from Hawaii
Somewhat harder to get is this fluorescent calcite specimen from Hawaii. Organic matter causes the fluorescence. (courtesy of the MKA)
Source: Axel Emmermann, MKA http://fluo.mineralogie.be/index.html
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Somewhat harder to get is this fluorescent calcite specimen from Hawaii. Organic matter causes the fluorescence. (courtesy of the MKA)
Source: Axel Emmermann, MKA http://fluo.mineralogie.be/index.html