"Avantor"

Deep purple, cubic crystal cluster.

Beautiful, violet-pink cleavage books of this uncommon lithium mica.

Calcite is a translucent calcium carbonate mineral, mohs hardness 3.

Beautiful deep green, prismatic, crystalline spray.

Polished banded slices with colorful translucence.

Hardened natural cement of calcium carbonate that binds other material such as gravel, sand, clay, and silt.