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Date: 2015-08-04 07:54:00Crystallography Gemstones Mineralogy Natural resources Nesosilicates Topaz Amethyst Opal Tanzanite Chrysolite | Farbuebersicht-Swarovski-Kristalle-BleistifteAdd to Reading ListSource URL: www.reidinger.deDownload Document from Source WebsiteFile Size: 280,86 KBShare Document on Facebook |