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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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Calcite, Fluorite and Sphalerite- Rosiclare, Illinois

22.6.2016

This is a mixed specimen containing calcite, fluorite, sphalerite and likely other minerals.  It was self-collected in 2015 at the tailings pile, Rosiclare Lead and Fluorspar Mining Co., Rosiclare, Illinois.  This piece shows a similar fluorescent response under SW, MW and LW UV- the fluorite is yellow, calcite pink/orange and also blue/white, and sphalerite mustard yellow/orange.  There is also an unknown mineral that shows a blue phosphorescent response following exposure to SW UV.  74.9 x 45.4 x 38.6 mm, 176 gms.

 

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