This beautiful piece of Nigerian Tourmaline has a hardness of 7.5 on the Mohs scale. This piece of facet rough weighs 11.56cts, measures 13x12x9mm this piece has been nearly pre formed and trimmed to perfection.
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This beautiful piece of Nigerian Tourmaline has a hardness of 7.5 on the Mohs scale. This piece of facet rough weighs 11.56cts, measures 13x12x9mm this piece has been nearly pre formed and trimmed to perfection.