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Chrysocolla is a copper-based mineral often found in oxidized copper deposits
Discovered in California in 1902 and named after gemologist George F
This item is 4" x 2" and weighs 25
Stibnite is one of those minerals that barely feels real
resinous crystals often on a matrix
Biotite on Anthophyllite | Czech Republic celestite Chrysocolla is a copper-based mineralBiotite 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 and weighs 5. 10 oz
