definisi
ignimbrite punika rock vulkanik dumadi utamané saka pecahan pumice, kawangun dening consolidation saka materi setor dening mili pyroclastic
  
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
  
Sajarah
  
  
asal
new zealand
  
pennsylvania, kita
  
panemu
Patrick marshall
  
Dingertèni
  
Etimologi
saka geni ignis latin + Imber, padusan imbr- udan, badai maya + -ite
  
saka anthrakites greek, saka anthrax, anthrak meaning coal
  
kelas
batuan beku
  
rocks metamorphic
  
sub-kelas
awet rock, medium atose rock
  
awet rock, rock alus
  
kulawarga
  
  
group
vulkanik
  
ora ditrapake
  
kategori liyane
rock grained nggoleki, rock opaque
  
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque