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Etimologi
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kategori liyane
chert punika hard, peteng, opaque rock sedimentary kang dumadi saka silika karo susunan nggoleki-grained amorf
saka quartz Flint-kaya, 1670s, diweruhi origin- istilah lokal, kang wis dijupuk menyang nggunakake geologi
rock grained nggoleki, rock opaque
foidolite jinis langka coarse-grained rock igneous intrusive karo isi Mineral feldspathoid luwih saka 60%
saka feldspathoid Mineral kang isi utama rock
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque