mercon obsidian, mahoni, Sheen obsidian, Snowflake obsidian lan Beludru merak obsidian
schists mica, schists calc-silicate, schists grafit, blueschists, whiteschists, greenschists, hornblende Schist, talc Schist, chlorite Schist, garnet Schist, Schist glaucophane.
pamblokiran negativity, mbantu kanggo ngreksa marang depresi
gampang pecah dadi lancip piring, Gamelan kanggo tutul