definisi
porphyry punika reddish-coklat kanggo kain rock igneous ngemot phenocrysts akeh macem-macem mineral ditempelake ing matrik nggoleki-grained
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
Sajarah
asal
egypt
-
panemu
Ora dingerteni
Alexandre brongniart Rene Hauy
Etimologi
saka lawas porfire french, saka porfiro italian lan ing sawetara kasus langsung saka porphyrites latin
saka trakhus greek atos 'utawa roughness trakhutēs
kelas
batuan beku
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
kulawarga
group
plutonic
vulkanik
kategori liyane
rock grained nggoleki, rock opaque
rock grained nggoleki, rock opaque