User talk:Jiatao24

Gemstones
BTW, for luster of gemstone finishes, vitreous is the same thing as glassy. They're synonyms. Certain gems often have sharper facet edges and better polishes due to either hardness or crystal structure, i.e. corundum, zircon, chrysoberyl, spinel, etc. For what its worth, I'm a graduate gemologist. --RyanTee82 (talk) 08:24, 16 October 2009 (UTC)