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An incredibly bright and colorful, fluorescent sodalite sphere. Orange sodalite, blue analcime, green chkalovite and black arfvedsonite come together in this sphere to create a stunning pattern under UV. The sodalite (hackmanite) on this sphere is some of the most tenebrescent material in the world.
When exposed to shortwave UV, the sodalite darkens to a deep grape purple, almost black. When you shine a bright white light, the color reverts back immediately. You can repeat this process over and over again. It's also longwave tenebrescent, meaning it will darken with exposure to longwave 365nm or just bring it out in the sun! Longwave tenebrescent sodalite is exceedingly hard to find on the market, let alone in sphere form.
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.
