Copper oxide, typically forming red to reddish-black crystals with an adamantine to submetallic luster. It's a stone of vitality, grounding, and life force, associated with the root chakra and alleviating worry.
Dark Red, Purplish-Red, Reddish-Brown, Black, often with adamantine luster
Cuprite is classified as a oxide mineral mineral which typically crystallizes in the cubic system. Its chemical formula is Cu2O. Common crystal habits include cubic, octahedral, and dodecahedral crystals; as hairlike capillary forms, earthy, compact granular and massive.