Gritstone lan Pumice Definition
definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
pumice punika rock vulkanik sing kasusun saka Highly vesicular atos kaca vulkanik tekstur, kang bisa utawa ora bisa ngemot kristal
asal
pennines, england
spain
panemu
JJ Ferber
Ora dingerteni
Etimologi
saka grit + watu
saka pomis french lawas, saka varian dialect latin saka pumex
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 nggoleki, rock opaque