Mahogany obsidian is volcanic glass: felsic lava cooled so quickly that no crystals had time to form

Citrine's color comes from trace iron and natural irradiation

Primary sources include Oregon

In the root and solar plexus chakra tradition

each one long associated with voice and expression

Green Fluorite Pyramid Size 1.75"x1.5"x1.5":$49 Mahogany obsidian is volcanic glass:A pyramid that holds the full fluorite color spectrum in a single carved face. Fluorite is calcium fluorideCaFa halide mineral with a Mohs hardness of 4 and perfect octahedral cleavage in four directions, which is why a fractured edge catches light in a characteristic staircase pattern. Green fluorite owes its color to trace impurities within the crystal structure; the same species produces purple, blue, yellow, and colorless specimens from the same