Anthracite lan Batubara Definition

Anthracite

Batubara

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1 Definition

1.1 definisi

Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur

coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal

1.2 Sajarah

1.2.1 asal

pennsylvania, kita

usa

1.2.2 panemu

Dingertèni

john peter Salley

1.3 Etimologi

saka anthrakites greek, saka anthrax, anthrak meaning coal

saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13

1.4 kelas

rocks metamorphic

rocks sedimentary

1.4.1 sub-kelas

awet rock, rock alus

1.5 kulawarga

1.5.1 group

ora ditrapake

1.6 kategori liyane

rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque

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