definisi
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
  
novaculite punika kandhel, hard, nggoleki-grained, siliceous rock metamorpic kang jinis chert sing ngilangi karo rengat conchoidal
  
Sajarah
  
  
asal
pennsylvania, kita
  
dingerteni
  
panemu
Dingertèni
  
Dingertèni
  
Etimologi
saka anthrakites greek, saka anthrax, anthrak meaning coal
  
saka novacula tembung latin, kanggo watu silet
  
kelas
rocks metamorphic
  
rocks sedimentary
  
sub-kelas
awet rock, rock alus
  
awet rock, hard 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