definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
chert punika hard, peteng, opaque rock sedimentary kang dumadi saka silika karo susunan nggoleki-grained amorf
Sajarah
asal
pennsylvania, kita
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panemu
Ora dingerteni
Ora dingerteni
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka quartz Flint-kaya, 1670s, diweruhi origin- istilah lokal, kang wis dijupuk menyang nggunakake geologi
kelas
rocks metamorphic
rocks sedimentary
sub-kelas
awet rock, rock alus
awet rock, hard rock
kulawarga
group
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kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque