definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
tuff jinis rock digawe saka awu vulkanik luwar saka ngeculake sajrone eruption vulkanik
asal
pennsylvania, kita
italy
panemu
Dingertèni
Dingertèni
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka tembung latin tophous banjur ing tufo italian lan pungkasanipun tuff
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, rock alus
awet rock, medium atose rock
group
ora ditrapake
vulkanik
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque