"Freeze-Dried Specimens"

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

Beautiful deep green, prismatic, crystalline spray.

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

Sale

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

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

Deep purple, cubic crystal cluster.

China

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

Distinctive cut and polished geode halves with agate rims and drusy crystal linings. Average size: 1 1/2–2" diameter. Utah.