Malachite Cabochon Square Earrings in Filagree Setting

Malachite
Malachite is a rich green secondary mineral, containing up to 58% Copper. It forms according to a monoclinic crystal structure and has a hardness 3.5-4 on the Mohs scale with a specific Gravity: 3.6 – 4.05 and a Adamantine, Vitreous, Silky, Dull, Earthy luster.