definisi
taconite punika biji wesi kurang-bahan kang belongs kanggo sedimen rock lan ngemot bab 27% wesi lan 51% silika
rhyolite punika rock igneous nggoleki-grained kang sugih ing silika
asal
western australia, Minnesota
lor amerika
panemu
Newton Horace Winchell
Ferdinand von Richthofen
Etimologi
saka jeneng gunung taconic ing england anyar
saka rhyolit german, saka stream lahar greek rhuax + watu lithos
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock opaque