Angelite

Commercial name for a semi-transparent light blue-gray to blue-lilac anhydrite. Sold with this name is usually the solid form from Peru, but anhydrite crystals are…

Apache tear

Local name for spherical obsidian, usually embedded in gray perlite, mainly from Arizona, United States. The spheres of black-gray translucent obsidian occur as cores in…

Aphrodite stone

Commercial fantasy name for cobalt-bearing calcite (also called cobalto-calcite), named after the Greek goddess Aphrodite, the goddess of love, beauty, sexuality and fertility, among other…