Tags: Chemical Substance, Mineral.
Pecoraite is a Nickel silicate mineral and a member of the serpentine group. It is monoclinic and has a chemical composition of Ni3(Si2O5)(OH)4 It is associated with the weathering-and-or oxidation of meteorites or nickel sulfide minerals such as Millerite. It is also found as shears in ultramafic rocks. Pecoriate is typically a green lime green or bluegreen mineral with a waxy or earthy luster and a mohs hardness of 2.5.
