definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
wehrlite iku sawijining ultramafic lan ultrabasic rock sing iku dicampur saka olivine lan clinopyroxene. iku bagean-bagean saka peridotites
asal
pennsylvania, kita
egypt
panemu
Ora dingerteni
Alois wehrle
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka jeneng profesor, Alois wehrle
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, rock alus
awet rock, medium atose rock
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained coarse, rock opaque