Pumice lan Gritstone Definition
definisi
pumice punika rock vulkanik sing kasusun saka Highly vesicular atos kaca vulkanik tekstur, kang bisa utawa ora bisa ngemot kristal
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
asal
spain
pennines, england
panemu
Dingertèni
JJ Ferber
Etimologi
saka pomis french lawas, saka varian dialect latin saka pumex
saka grit + watu
kelas
batuan beku
rocks sedimentary
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
group
vulkanik
ora ditrapake
kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock opaque