definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
mudstone punika, peteng rock sedimentary werna abu-abu nggoleki-grained, kang kawangun saka silt lan lempung lan iku padha krikel nanging wis kurang laminations
Sajarah
asal
pennsylvania, kita
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panemu
Ora dingerteni
William Smith
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka lendhut english lan watu, saka mudde low german lan stainaz
kelas
rocks metamorphic
rocks sedimentary
sub-kelas
awet rock, rock alus
awet rock, rock alus
kulawarga
group
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kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque