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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
granulite nggoleki kanggo medium grained metamorphic rock karo granular kristal polygonal.
saka granulum latin, a gandum sethithik utawa grained nggoleki
rock grained coarse, medium rock grained, rock opaque