definisi
iku Magnesium sugih rock metamorphic amarga dumadi saka talc Mineral
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
panemu
Ora dingerteni
Alexandre brongniart Rene Hauy
Etimologi
saka abad ka-17, amarga saka aran greasy lan nggunakake kaya sinetron sing
saka trakhus greek atos 'utawa roughness trakhutēs
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, rock alus
awet rock, medium atose rock
kategori liyane
rock grained nggoleki, rock opaque
rock grained nggoleki, rock opaque