Batubara lan Anthracite Definition

Batubara

Anthracite

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1 Definition

1.1 definisi

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

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

1.2 Sajarah

1.2.1 asal

usa

pennsylvania, kita

1.2.2 panemu

john peter Salley

Dingertèni

1.3 Etimologi

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

saka anthrakites greek, saka anthrax, anthrak meaning coal

1.4 kelas

rocks sedimentary

rocks metamorphic

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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