"Olivine-orthopyroxenite"@en . "Olivine-orthopyroxenite - A type of olivine-pyroxenite. In the Rock Classification Scheme, it is an olivine-pyroxenite with olivine 5 - 40%, pyroxene 55 - 90% (<5% clinopyroxene) and hornblende <5% of olivine + pyroxene + hornblende. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 15, 16."@en . "Olivine-orthopyroxenite"@en . . . . "stable"@en . . "OLOPXT"@en . .