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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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Gem Tugtupite from Greenland - "The King of Fluorescent Minerals"

25.8.2017

Before 2000, small tugtupite pieces (2" to 3") were selling for $500 or more.  They earned the moniker "King of Fluorescent Minerals" due to the rich red color and brightness.  In 2001 I started supplying pieces to the market, prices dropped, and we haven't looked back.  Quality pieces still garner top dollar, but the sizes have also increased (such as this piece).  Shortwave shown below followed by an animation showing the color change after exposure to UV (tenebrescence), then a gallery of pics under midwave, longwave, and white light.

 

 

 

 

 

 

 

 

 

 

 

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