Trolleite 8mm Large Hole Round - 8 Inch Table Cut Corner Drilled Cube Feldspars are a group of

Feldspars are a group of rock-forming aluminium tectosilicate minerals

Cuprite is a copper oxide mineral frequently found in association with copper deposits as well as azurite

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The cabochon you received will not be exactly what is shown in the image

sold a piece of Green Tourmaline to Tiffany & Co

Trolleite 8mm Large Hole Round - 8 Inch Table Cut Corner Drilled Cube Feldspars are a group ofTrolleite is an extremely rare aluminum phosphate mineral that crystallizes in the form of masses and small prismatic crystals. It is made up of quartz, lazulite, scorzalite, and sometimes lepidolite. It's often found in large masses and can be colorless, light to pale green, bluish green, or bright blue. Trolleite is known for its greasy appearance and subdued shine, even when polished.