Malachite

Vivid green Malachite is a copper hydroxy-carbonate with light and dark green which can produce an almost metalic color when carved and polished.

• Period: O
  • Copper Hydroxyls
  • Hardness: 4
• Group: Group IA?

See also Matter, Gems, Li and Copper Hydroxyls.

— Scotus - 30 Dec 2001