Tetrahedrite // 9 Lb.

Named for the unique and geometrically fascinating tetradron shape of its crystals, this important ore of copper - also an ore of silver - crystallizes or forms masses in metalliferous hydrothermal veins. Fine tetrahedrites like this large specimen are prized by collectors for their crystal structure and unique colorations.

Dimensions: 12-1/4"L x 5-3/4"W x 3"H, Weight: 9 lb.