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Gritstone
Gritstone

Anthracite
Anthracite



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Anthracite

Gritstone lan Anthracite Definition

1 Definition
1.1 definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
1.2 Sajarah
1.2.1 asal
pennines, england
pennsylvania, kita
1.2.2 panemu
JJ Ferber
Dingertèni
1.3 Etimologi
saka grit + watu
saka anthrakites greek, saka anthrax, anthrak meaning coal
1.4 kelas
rocks sedimentary
rocks metamorphic
1.4.1 sub-kelas
awet rock, hard rock
awet rock, rock alus
1.5 kulawarga
1.5.1 group
ora ditrapake
ora ditrapake
1.6 kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque