Batubara lan Gritstone Definition

Batubara

Gritstone

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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

gritstone utawa grit punika hard, coarse-grained, siliceous sandstone

1.2 Sajarah

1.2.1 asal

usa

pennines, england

1.2.2 panemu

john peter Salley

JJ Ferber

1.3 Etimologi

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

saka grit + watu

1.4 kelas

rocks sedimentary

1.4.1 sub-kelas

awet rock, rock alus

awet rock, hard rock

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 coarse, rock opaque

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