Tugtupite - A Rare Fluorescent Mineral from Greenland
Tugtupite is the most widely known fluorescent mineral from Greeenland. It is used in making beautiful tugtupite cabochons.Read more
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Under shortwave UV, the margarosanite fluoresces bright blue and the calcite fluoresces red. Other than Franklin, New Jersey, the Jakobsberg Mining District of Sweden, next to Langban, is the only other known source for margarosanite.