definisi
taconite punika biji wesi kurang-bahan kang belongs kanggo sedimen rock lan ngemot bab 27% wesi lan 51% silika
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
Sajarah
asal
western australia, Minnesota
pennines, england
panemu
Newton Horace Winchell
JJ Ferber
Etimologi
saka jeneng gunung taconic ing england anyar
saka grit + watu
kelas
rocks sedimentary
rocks sedimentary
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kulawarga
group
-
-
kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock opaque