. . . "Olivine-microwebsterite"@en . "MCOLWB"@en . "Olivine-microwebsterite - A type of olivine-micropyroxenite. In the Rock Classification Scheme, it is the medium-grained equivalent of olivine-websterite. British Geological Survey Research Report RR/99/06, section 5.1."@en . "Olivine-microwebsterite"@en . "stable"@en . . .