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November 18: Star Padparadsha Sapphire A collector’s choice Phenomenal gemstones, including star sapphires, surface through in-depth mining efforts and percolate through the hands of gem cutters and merchants, ...
Colors: red = ruby, all other colors = sapphire red - orange = padparadsha sapphire Hardness: 9 Specific gravity: 3.99 Cleavage: false ,which may be well developed Refractive index: avg. 1.762 to 1.77 v. .008 Comments Covellite ... covelline ...
See also: Cleavage, Surface, Size, Crystals, Growth
 
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