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Corundum

Color: W hite or colorless, blue, red, yellow, green, brown, purple, and pink Class: Oxides and Hydroxides Streak: White Hardness: 9 Cleavage/fracture: Cleavage is absent, although there is parting which occurs in three directions. Fracture is conchoidal . Specific density:4.0+. Corundum.

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Corundum

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  1. Color: White or colorless, blue, red, yellow, green, brown, purple, and pink Class: Oxides and Hydroxides Streak: White Hardness: 9 Cleavage/fracture: Cleavage is absent, although there is parting which occurs in three directions. Fracture is conchoidal. Specific density:4.0+ Corundum

  2. Corundum • Al2O3, Aluminum Oxide • Include Burma; Sri Lanka; North Carolina and Montana, USA; many African localities; several localities in India, and Middle Eastern and Southeast Asian countries. • Mined almost solely from gem gravel deposits which have come from weathering high temperature metamorphic or igneous terrains

  3. Corundum • 350$ per oz. • Commonly used in jewelry making • Gemstones are when minerals are cut • My birthstone is Peridot

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