Dioptase - Mineral Specimen unique calcite typical of common to semi-precious

typical of common to semi-precious opal material from these fields

Opal has a gentle energy that is believed to raise your consciousness and strengthen your psychic visions

The overall look is dark and dramatic

Their smooth

The crystals grew in open cavities within a hydrothermal system

Dioptase - Mineral Specimen unique calcite typical of common to semi-preciousMined from: Renville Mine, Pool Department, Republic of the Congo Description: This dioptase specimen from the Renville Mine shows a classic botryoidal copper rich matrix coated with dense clusters of deep green crystals lining a natural cavity. The outer surface has that velvety, granular look typical of oxidized copper minerals, while the interior opens into a pocket of well formed, glassy dioptase crystals. The contrast between the rough exterior