ignimbrite punika rock vulkanik dumadi utamané saka pecahan pumice, kawangun dening consolidation saka materi setor dening mili pyroclastic 0
saka geni ignis latin + Imber, padusan imbr- udan, badai maya + -ite 0
awet rock, medium atose rock 0
rock grained nggoleki, rock opaque 0