Nephelinite lan Taconite Definition
definisi
nephelinite punika rock igneous nggoleki-grained utawa aphanitic arupi meh tanggung saka nepheline lan clinopyroxene (macem-macem augite).
taconite punika biji wesi kurang-bahan kang belongs kanggo sedimen rock lan ngemot bab 27% wesi lan 51% silika
asal
brasil
western australia, Minnesota
panemu
Ora dingerteni
Newton Horace Winchell
Etimologi
saka néphéline french, saka Nefele greek
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 nggoleki, rock opaque
rock grained coarse, rock opaque