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![]() Date: 2007-08-29 23:11:37Natural resources Chemistry Borate minerals Dumortierite Sillimanite Andalusite Kyanite Schist Tourmaline Crystallography Nesosilicates Gemstones | Source URL: www.minsocam.orgDownload Document from Source WebsiteFile Size: 1,47 MBShare Document on Facebook |