definisi
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
litchfieldite punika rock langka igneous kang coarse-grained, foliated lan macem-macem nepheline syenite, kadhangkala uga disebut minangka nepheline syenite gneiss utawa gneissic nepeheline syenite
panemu
Alexandre brongniart Rene Hauy
Bayley
Etimologi
saka trakhus greek atos 'utawa roughness trakhutēs
saka occurrence ing Litchfield, maine, usa
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock opaque