Chemical Formula: (Zn,Cu)5((CO3)(OH)3)2

Chemical Name: Zinc Copper Carbonate Hydroxide

Mineral Class: Carbonate

Mineral Notes: Aurichalcite forms in the oxidation zones of Zinc and Copper deposits. Crystals are fibrous and often aggregated into stunning rosettes. The mineral colour varies between attractive sea blue to pale green.

Description: A superbly crystalline specimen of Aurichalcite. The crystals are sky-blue, needle-like and form rosettes on the surface of the matrix.