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Anoxic Conditions: Pyritization typically occurs in anoxic (oxygen-depleted) environments
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Featuring more than 750 rarely seen vintage posters
This curious wood catapult kit must have been designed by one demented engineer
it’s actually blue) is super valuable in the medical world because it’s used to test for bacteria in vaccines and surgical equipment
Fluorescent Hyalite Cluster Framed Anoxic Conditions: Pyritization typically occursHyalite doesnt have color flash like contra luz opals but it does have a different surprise. Keep watching to see it under UV light! This fluorescent response is due to the trace element of Uranium which this specimen does contain. What this means is that these specimens are slightly radioactive but at relatively low levels (which may change from piece to piece). They do not pose a health concern and these low levels. All crystals and minerals vary
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