porphyries rhomb
schists mica, schists calc-silicate, schists grafit, blueschists, whiteschists, greenschists, hornblende Schist, talc Schist, chlorite Schist, garnet Schist, Schist glaucophane.
tuan rumah rock kanggo timbal
gampang pecah dadi lancip piring, Gamelan kanggo tutul