definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
basalt punika rock igneous extrusive umum kawangun dening cooling kanthi cepet saka lahar basaltic kapapar ing utawa banget cedhak ing lumahing bumi
asal
pennsylvania, kita
egypt
panemu
Ora dingerteni
George Agricola
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka pungkasan basaltes latin (varian saka basanites), watu banget hard, kang diimpor saka basanites greek kuna
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 nggoleki, rock opaque