Display and Specialty Minerals

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

Sharp, brown, twinned, orthorhombic, ³/₈– ¹/₂".

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

Beautiful deep green, prismatic, crystalline spray.

Deep purple, cubic crystal cluster.

Polished banded slices with colorful translucence.

Beautiful, blue, hexagonal, sapphire crystals. Average size: 3/8". Madagascar.

China

Deep, rich, black, prismatic tourmaline crystals with excellent crystal form and triangular terminations.