1 Definition
1.1 definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
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
pennines, england
new zealand
1.2.2 panemu
JJ Ferber
Patrick marshall
1.3 Etimologi
saka grit + watu
saka geni ignis latin + Imber, padusan imbr- udan, badai maya + -ite
1.4 kelas
rocks sedimentary
batuan beku
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 coarse, rock opaque
rock grained nggoleki, rock opaque