definisi
arkose punika rock sedimentary, khusus jinis sandstone ngemot paling sethithik 25% Feldspar
shoshonite punika rock basaltic, mlaku a trachyandesite potassic, dumadi saka olivine, augite lan plagioclase phenocrysts ing groundmass karo plagioclase calcic lan sanidine lan sawetara kaca vulkanik peteng-colored
panemu
Alexandre brongniart
iddings
Etimologi
saka wilayah Auvergne saka prancis digunakake dening geologist Alexandre brongniart french 1826 sing Applied istilah iki kanggo sawetara sandstones feldspathic
saka panggonan asal disebut shoshone riverin wyoming
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque