A cool specimen of enargite crystals with colourful iridescent chalcopyrite from Bingham Mining District, Salt Lake County, Utah, United States. The enargite forms very sharp prismatic crystals with flat tips, growing in a cluster. Some are doubly terminated. The lustre is strong and nice striations are seen on the faces. Chalcopyrite with glittering purple, blue and yellow gives a colourful display. In excellent condition. On acrylic base.

Superb!