1 Definition
1.1 definisi
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
kenyte iku macem-macem phonolite porphyritic utawa trachyte rock karo phenocrysts rhomb shaped anorthoclase karo rupo olivine lan augite ing matrik glassy
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
Ferdinand von Richthofen
JW Gregory
1.3 Etimologi
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
saka gunung ranges- Gunung kenya lan dijenengi dening JW Gregory in 1900
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 coarse, rock opaque
rock grained nggoleki, rock opaque