definisi
novaculite punika kandhel, hard, nggoleki-grained, siliceous rock metamorpic kang jinis chert sing ngilangi karo rengat conchoidal
taconite punika biji wesi kurang-bahan kang belongs kanggo sedimen rock lan ngemot bab 27% wesi lan 51% silika
asal
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western australia, Minnesota
panemu
Ora dingerteni
Newton Horace Winchell
Etimologi
saka novacula tembung latin, kanggo watu silet
saka jeneng gunung taconic ing england anyar
kelas
rocks sedimentary
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