"Activités de comprehensive"

Deep purple, cubic crystal cluster.

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

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

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

Sparkling pale blue transparent crystals in vug-like matrix. Average size: 2" x 2". Madagascar.

Brilliant blue lab-grown copper sulfate crystal group. Average size: 2" x 2". Poland.

Spain

China

Utah