definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
  
slate punika, kabeh podho rock metamorphic nggoleki-grained, foliated asalé saka krikel-jinis sedimentary rock asli dumadi saka lempung utawa awu vulkanik liwat kurang-bahan metamorphism regional
  
Sajarah
  
  
asal
pennsylvania, kita
  
england
  
panemu
Dingertèni
  
Dingertèni
  
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
  
saka lawas esclate french, saka esclat (french éclat)
  
kelas
rocks metamorphic
  
rocks metamorphic
  
sub-kelas
awet rock, rock alus
  
awet rock, medium atose rock
  
kulawarga
  
  
group
ora ditrapake
  
ora ditrapake
  
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
  
rock grained nggoleki, rock opaque