45x 1 Carat Lab Created Ruby - Synthetic corundum € - TopicsExpress



          

45x 1 Carat Lab Created Ruby - Synthetic corundum € 34,- Chemical composition : Al2O3 Crystal Structure : Hexagonal Purity : 99.99% Refractive Index : 1.717 Density : 3.98-4.1 g/cm3 Hardness Mohs : 9 Manufacturing Method : Verneuil, also called Flame Fusion Rubies (Corundum) have a hardness of 9.0 on the Mohs scale of mineral hardness. Among the natural gems only moissanite and diamond are harder
Posted on: Sun, 26 Oct 2014 08:07:51 +0000

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