definisi
porphyry punika reddish-coklat kanggo kain rock igneous ngemot phenocrysts akeh macem-macem mineral ditempelake ing matrik nggoleki-grained
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
Sajarah
asal
egypt
lor amerika
panemu
Ora dingerteni
Ferdinand von Richthofen
Etimologi
saka lawas porfire french, saka porfiro italian lan ing sawetara kasus langsung saka porphyrites latin
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
kelas
batuan beku
batuan beku
sub-kelas
awet rock, hard rock
awet rock, hard rock
kulawarga
group
plutonic
vulkanik
kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock opaque