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Nature’s Rainbows is a non-commercial web site maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.


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Solid Chunk of some of the most Tenebrescent Sodalite (Hackmanite) from Greenland

28.7.2016

 This piece almost turns black after being exposed to shortwave UV!

 

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