Large crystal with sharp facets from the Zazafotsy Quarry, Madagascar. Sapphire along with ruby is the mineral corundum.
Corundum is an aluminium oxide mineral and contains traces of iron, titanium and chromium which influence the crystals colour. A hardness of 9 on the Moh's scale of hardness
Dimensions (millimeters): 48 x 45 x 45
Dimensions (inches): 1.9 x 1.8 x 1.8
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