definisi
banget nggoleki rock fault grained kang dumadi saka matrik glassy sing asring ngandhut inclusions pecahan wall-rock.
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 pseudo- + tachylite, a rock glassy déning panas frictional ing bentet.
saka occurrence ing Litchfield, maine, usa
kelas
rocks metamorphic
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