definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
tachylite punika wangun vitreous saka kaca vulkanik basaltic. kaca iki alami dening cooling kanthi cepet saka basalt molten
asal
pennines, england
iceland
panemu
JJ Ferber
Ora dingerteni
Etimologi
saka grit + watu
saka tachylite german, saka tachy- + lutos greek telat, leleh
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