From Wikipedia, the free encyclopedia
Corundo[1] es un mineral, le oxydo de aluminium α-Al2O3. Illo es multo dur, 9 in le scala de Mohs in le qual le mineral plus dur, diamante, es un 10.
| Corundo |
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| instantia de: specie mineral[*] |
| subclasse de: hematite mineral group[*] |
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| Commons: Corundum |
Un rubino es un gemma que es facite de corundo con impuritates de chromo que imparti un color rubie. Un sapphiro es un gemma facite de corundo con impuritates de altere elementos que imparti altere colores, plus communmente blau.
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