Explanation

A type of ultrabasic intrusive rock. The fl is almost all composed of olivine (90%~100%), and MJ has less than 10% pyroxene and a small amount of chromite, magnetite, ilmenite, pyrrhothe, natural platinum, etc. The color is dark green and brownish green. Fully idiomorphic or xenomorphic granular structure, dense massive structure, after alteration, becomes dense serpentinite with oil luster. It often forms complex with peridmite, pyroxenite, gabbro, etc. It can be used as raw material for preparing silica magnesia refractory; After complete alteration, it can be used to prepare silicon magnesium composite fertilizers.

Classification