DescriptionCorundum-41673.jpg English: Corundum (Var.: Sapphire) Locality: Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka (Locality at...
[[:en:Muzo|Muzo]], Vasquez-Yacopí Mining District, [[:en:Boyacá D File:Corundum-41673.jpg licensed with Cc-by-sa-3.0, Rob Lavinsky cc-by-sa 2010-04-01T21:53:42Z...