1 Definition
1.1 definisi
picrite iku macem-macem dhuwur-Magnesium basalt olivine sing sugih banget ing olivine Mineral
ignimbrite punika rock vulkanik dumadi utamané saka pecahan pumice, kawangun dening consolidation saka materi setor dening mili pyroclastic
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
Dingertèni
Patrick marshall
1.3 Etimologi
saka pikros greek pait + -ite, abad ka-19
saka geni ignis latin + Imber, padusan imbr- udan, badai maya + -ite
1.4 kelas
1.4.1 sub-kelas
awet rock, hard rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, rock opaque
rock grained nggoleki, rock opaque