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