definisi
tephrite iku sawijining aphanitic kanggo porphyritic tekstur, vulkanik rock igneous
taconite punika biji wesi kurang-bahan kang belongs kanggo sedimen rock lan ngemot bab 27% wesi lan 51% silika
asal
germany
western australia, Minnesota
panemu
van tooren
Newton Horace Winchell
Etimologi
saka tephra greek, awu saka basa indo-european, kanggo ngobong
saka jeneng gunung taconic ing england anyar
kelas
batuan beku
rocks sedimentary
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
kategori liyane
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque
rock grained coarse, rock opaque