definisi
litchfieldite punika rock langka igneous kang coarse-grained, foliated lan macem-macem nepheline syenite, kadhangkala uga disebut minangka nepheline syenite gneiss utawa gneissic nepeheline syenite
  
Anthracite jinis rock sedimentary kang hard lan macem-macem batu bara sing wis luster dhuwur
  
Sajarah
  
  
asal
usa
  
pennsylvania, kita
  
panemu
Bayley
  
Dingertèni
  
Etimologi
saka occurrence ing Litchfield, maine, usa
  
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
plutonic
  
ora ditrapake
  
kategori liyane
rock grained coarse, rock opaque
  
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque