peridotite definition
peridotite means a general term for intrusive ultramafic igneous rocks consisting of olivine and lacking felspar. “PGE” is platinum group element.
peridotite means a dense, dark-colored, coarse-grained igneous rock consisting mostly of the minerals olivine and pyroxene. Peridotite is ultramafic in composition, contains less than 45% silica and is high in magnesium and iron.
peridotite means an ultramafic rock consisting of olivine and pyroxene, with minimal feldspar. "PGM" means Platinum Group Metal, refer “Precious Metals” below.
More Definitions of peridotite
peridotite means a coarse-grained plutonic rock composed chiefly of olivine with or without other mafic minerals such as pyroxenes, amphiboles, or micas, and containing little or no feldspar. Accessory minerals of the spinel group are commonly present. Peridotite is commonly altered to serpentinite;