definisi
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
rapakivi granit punika granit hornblende-biotite ngemot kristal dibunderaké akeh orthoclase kang mantled karo oligoclase
Sajarah
asal
-
finland, europe
panemu
Alexandre brongniart Rene Hauy
Jakob sederholm
Etimologi
saka trakhus greek atos 'utawa roughness trakhutēs
saka rapakivi finnish kang stands for rock crumbly
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kulawarga
group
vulkanik
plutonic
kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock opaque