Anthracite lan Websterite Definition

Anthracite

Websterite

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1 Definition

1.1 definisi

Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur

websterite punika ultramafic lan ultrabasic rock sing kasusun saka takeran kira-kira witjaksono orthopyroxene lan clinopyroxene. iku jinis khusus saka pyroxenite.

1.2 Sajarah

1.2.1 asal

pennsylvania, kita

webster, North Carolina

1.2.2 panemu

Dingertèni

1.3 Etimologi

saka anthrakites greek, saka anthrax, anthrak meaning coal

saka kutha webster dumunung ing North Carolina

1.4 kelas

rocks metamorphic

batuan beku

1.4.1 sub-kelas

awet rock, rock alus

awet rock, hard rock

1.5 kulawarga

1.5.1 group

ora ditrapake

plutonic

1.6 kategori liyane

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

rock grained coarse, rock opaque

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