Gritstone lan Batubara Definition

Gritstone

Batubara

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1 Definition

1.1 definisi

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

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

pennines, england

usa

1.2.2 panemu

JJ Ferber

john peter Salley

1.3 Etimologi

saka grit + watu

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

1.4 kelas

rocks sedimentary

1.4.1 sub-kelas

awet rock, hard rock

awet rock, rock alus

1.5 kulawarga

1.5.1 group

ora ditrapake

1.6 kategori liyane

rock grained coarse, rock opaque

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

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