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Chert
Chert

Batubara
Batubara



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Batubara

Chert lan Batubara Definition

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kategori liyane

 
chert punika hard, peteng, opaque rock sedimentary kang dumadi saka silika karo susunan nggoleki-grained amorf
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Ora dingerteni
saka quartz Flint-kaya, 1670s, diweruhi origin- istilah lokal, kang wis dijupuk menyang nggunakake geologi
rocks sedimentary
awet rock, hard rock
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rock grained nggoleki, rock opaque
 
coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal
usa
john peter Salley
saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13
rocks sedimentary
awet rock, rock alus
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rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque