definisi
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
Sajarah
asal
lor amerika
-
panemu
Ferdinand von Richthofen
Alexandre brongniart Rene Hauy
Etimologi
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
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
vulkanik
vulkanik
kategori liyane
rock grained coarse, rock opaque
rock grained nggoleki, rock opaque