Batubara lan Soapstone Definition

Batubara

Soapstone

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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

iku Magnesium sugih rock metamorphic amarga dumadi saka talc Mineral

1.2 Sajarah

1.2.1 asal

usa

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 abad ka-17, amarga saka aran greasy lan nggunakake kaya sinetron sing

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

rock grained nggoleki, rock opaque

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