Brazilian Amazonite 4x6 mm Table Cut Corner Drilled Cube - 15-16 Inch R1622 Cuprite is a copper oxide

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

A mixture of hydrocarbons

but it is opaque as well

Moonstone naturally occurs in a broad spectrum of colors

Brazilian Amazonite 4x6 mm Table Cut Corner Drilled Cube - 15-16 Inch R1622 Cuprite is a copper oxideBrazilian Amazonite is an opaque blue to green to light green stone, often occurring with inclusions of white, yellow or gray and occasionally translucent milky white. It is named for the Amazon River in Brazil, where the stones are thought to have been originally found, however they are not currently sourced from that particular region. Amazonite has a long and illustrious history dating back to Mesopotamia. It was used in the Egyptian Book of the