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Large and gemmy piece of tenebrescent sodalite from Greenland hand-mined by us. The sodalite area displays some interesting phosphorescence – we don’t usually see this in Greenland sodalite. Very unique stuff.
Throughout the specimen there are small dots of red fluorescent tugtupite. Under longwave UV light it is pretty much all a deep orange with the exception of the bottom, fluorescing a bluish white - might be chkalovite, or might be an unknown/unidentified mineral.
First, an animation showing the difference between the UV flashlight we recommend (365nm filtered UV flashlight) versus unfiltered 395nm UV flashlights we see many folks carrying around at shows. So. much. visible purple light. We selected a bunch of rocks as a demonstration. Took pictures of them under his flashlight without the filter and then with the filter.
A major component of rock collecting (for us) is simply getting out in nature. A buddy dragged us out to a very remote area here in middle Tennessee to hunt for fluorescent green agate. Since we consider ourselves pure "Glow Hounds" we weren't anticipating any glow rocks, just the beauty of the area, but we brought our UV lights anyway.
