definisi
greywacke wis ditetepake minangka rock sandstone coarse-grained peteng kang ngandhut sen lempung luwih saka 15 saben
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
Etimologi
saka grauwacke german, saka grau grey + wacke
saka occurrence ing Litchfield, maine, usa
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
group
ora ditrapake
plutonic
kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock opaque