Corundum

#	Item
51	PDF Document Add to Reading List Source URL: www.handbookofmineralogy.com Language: English - Date: 2007-09-30 01:10:20 Diaspore Oxide minerals Corundum Halloysite Lepidocrocite Halide minerals Boehmite Crystallography Chemistry Natural resources
52	PDF Document Add to Reading List Source URL: www.handbookofmineralogy.com Language: English - Date: 2007-09-30 01:00:36 Gemstones Superhard materials Abrasives Nesosilicates Oxide minerals Rutile Corundum Pleochroism Ruby Chemistry Crystallography Matter
53	PDF Document Add to Reading List Source URL: rruff.geo.arizona.edu Language: English Gemstones Superhard materials Abrasives Nesosilicates Oxide minerals Rutile Corundum Pleochroism Ruby Chemistry Crystallography Matter
54	PDF Document Add to Reading List Source URL: rruff.geo.arizona.edu Language: English Diaspore Oxide minerals Corundum Halloysite Lepidocrocite Halide minerals Boehmite Crystallography Chemistry Natural resources