It is valued for its aesthetic appeal and is believed by some to have calming energy

Although most have a weathered exterior

Size: 11x9mm

purple and several other shades

shape and color should be expected

Tetrahedrite and Calcite Crystal Cluster | 63.8 Grams | Lima, Peru Ring It is valued for itsThis beautiful cluster combines tetrahedrite and calcite crystals. Tetrahedrite crystals are fascinating minerals known for their distinctive tetrahedral shape and shiny, metallic luster. It typically forms in well defined tetrahedral crystals, which can be grouped in clusters. The color range includes shades of metallic gray, black, and sometimes reddish hues due to the presence of copper and other trace elements. Tetrahedrite is commonly found in