Gritstone lan Porphyry Definition
definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
porphyry punika reddish-coklat kanggo kain rock igneous ngemot phenocrysts akeh macem-macem mineral ditempelake ing matrik nggoleki-grained
asal
pennines, england
egypt
panemu
JJ Ferber
Dingertèni
Etimologi
saka grit + watu
saka lawas porfire french, saka porfiro italian lan ing sawetara kasus langsung saka porphyrites latin
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, hard rock
awet rock, hard rock
group
ora ditrapake
plutonic
kategori liyane
rock grained coarse, rock opaque
rock grained nggoleki, rock opaque