definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
mugearite jinis oligoclase prewangan basalt, uga dumadi saka olivine, apatite, lan oksida opaque
Sajarah
asal
pennines, england
Skye, Scotland
panemu
JJ Ferber
alfred Harker
Etimologi
saka grit + watu
saka mugear + -ite
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
kulawarga
group
-
vulkanik
kategori liyane
rock grained coarse, rock opaque
rock opaque