Explanation
graphite bearing metamorphic rock is formed by intermediate regional metamorphism of organic rich sedimentary rock and igneous rock. It is the main rock of scaly graphite. The main minerals are plagioclase, quartze and graphite (50% -60%), followed by biotite, pyroxene and hornblende. Fine scale balastic texture, part of which is fibrous granite balastic texture and gneissose structure. Rock is gray, greenish gray and blackish gray.
Classification
Natural materials and products -> Mineral materials