Hypersthene is an orthorhombic mineral of the pyroxene group, of a greyish or greenish black colour, often with a peculiar bronzelike luster (schiller) on the cleavage surface.
Related terms:
Hypersthene is an orthorhombic mineral of the pyroxene group, of a greyish or greenish black colour, often with a peculiar bronzelike luster (schiller) on the cleavage surface.
Related terms: