1 Definition
1.1 definisi
porphyry punika reddish-coklat kanggo kain rock igneous ngemot phenocrysts akeh macem-macem mineral ditempelake ing matrik nggoleki-grained
rhyodacite iku sawijining rock vulkanik extrusive penengah ing komposisi antarane dacite lan rhyolite
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka lawas porfire french, saka porfiro italian lan ing sawetara kasus langsung saka porphyrites latin
rhyo lite + dacite: a rock antarané rhyolite lan dacite sing extrusive padha karo granodiorite
1.4 kelas
1.4.1 sub-kelas
awet rock, hard rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, rock opaque
rock grained nggoleki, rock opaque