. "stable"@en . "MAG"@en . "Magnetitite - A type of rock of restricted mineralogy. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock in which magnetite exceeds 90% of the mineral mode. British Geological Survey Research Report RR/99/06, section 8.2."@en . . . "Magnetitite"@en . . "Magnetitite"@en .