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An orthoproxene mineral
Biotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks
this unique Madagascar Agate rock specimen is perfect for gift giving or keep for yourself
Green is the most common color for Aventurine
Cat's Eye 6mm Round A Grade - 15-16 Inch Larimar An orthoproxene mineralCats Eye is a quartz stone that appears in a range of colors including white, gray, green, yellow and brown. The fibrous asbestos inclusions in the stone give it the flash that inspired its name. It is a form of Chrysoberyl, the third to hardest common natural gemstone, with a Mohs Hardness of 8. 5, between Topaz (8) and Corundum (9).
