Biotite on Anthophyllite | Czech Republic metal fluorite also hides remarkable fluorescent

fluorite also hides remarkable fluorescent properties only visible under UV light- and is actually the source of our word "fluorescent"

dendritic fossils look like plants but are actually deposits of manganese oxide on limestone that has crystallized into a branch pattern that looks similar to a plant

radiating crystal cluster

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Biotite on Anthophyllite | Czech Republic metal fluorite also hides remarkable fluorescentBiotite on anthophyllite refers to a common geological occurrence where dark mica (biotite) crystals grow within or around fibrous anthophyllite, an amphibole mineral, often forming attractive specimens with distinct textures like bladed crystals or nodular "balls," indicating specific metamorphic conditions (low HCl fluids). This item is 2 x 1. 5 and weighs 2. 6 oz