1 Definition
1.1 definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
basalt punika rock igneous extrusive umum kawangun dening cooling kanthi cepet saka lahar basaltic kapapar ing utawa banget cedhak ing lumahing bumi
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
JJ Ferber
George Agricola
1.3 Etimologi
saka grit + watu
saka pungkasan basaltes latin (varian saka basanites), watu banget hard, kang diimpor saka basanites greek kuna
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