Tags: Chemical Substance, Mineral.
Violarite (Fe2+Ni23+S4) is a supergene sulfide mineral associated with the weathering and oxidation of primary pentlandite nickel sulfide ore minerals.Violarite crystallises in the isometric system with a hardness of 4.5 to 5.5 and a specific gravity of about 4 is dark violet grey to copper-red often with verdigris and patina from associated copper and arsenic sulfides and is typically in amorphous to massive infill of lower saprolite ultramafic lithologies.