definisi
asal
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Etimologi
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sub-kelas
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kategori liyane
troctolite jinis rock intrusive mafic. iku kasusun ateges Jumlah utama nanging maneko rupo olivine lan calcic plagioclase bebarengan karo pyroxene suntingan. iku anorthosite-sugih olivine, utawa sing relatif pyroxene-kurang saka gabbro
christian Leopold von Buch
saka troklotit german, saka trōktēs greek, iwak segara (dijupuk dadi sejenis iwak)
rock grained coarse, rock opaque
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
saka anthrakites greek, saka anthrax, anthrak meaning coal
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque