Sapphire has a hardness of 9 on the Mohs scale. This beautiful piece of Sapphire facet rough from the Winza mining district in Tanzania weighs 2.25cts measures 7x5x5mm and has some small viels.
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Sapphire has a hardness of 9 on the Mohs scale. This beautiful piece of Sapphire facet rough from the Winza mining district in Tanzania weighs 2.25cts measures 7x5x5mm and has some small viels.