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Anthracite
Anthracite

Trachyte
Trachyte



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Anthracite
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Trachyte

Anthracite lan Trachyte Definition

1 Definition
1.1 definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
1.2 Sajarah
1.2.1 asal
pennsylvania, kita
dingerteni
1.2.2 panemu
Dingertèni
Alexandre brongniart Rene Hauy
1.3 Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
saka trakhus greek atos 'utawa roughness trakhutēs
1.4 kelas
rocks metamorphic
batuan beku
1.4.1 sub-kelas
awet rock, rock alus
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
ora ditrapake
vulkanik
1.6 kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque