jinis
dacite
schists mica, schists calc-silicate, schists grafit, blueschists, whiteschists, greenschists, hornblende Schist, talc Schist, chlorite Schist, garnet Schist, Schist glaucophane.
fitur
iku salah siji saka rock tuwa, biasane blentongé ireng lan putih.
gampang pecah dadi lancip piring, Gamelan kanggo tutul