Corundum (Var: Sapphire)
Ehiliyagoda, Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka
3.9 x 2.5 x 1.4 cm. This heart-shaped twin of sapphire is truly spectacular, much better in person. This type of twinning is extremely rare in corundum. The luster, transparency, and pastel blue color are enhanced by the definitive twinning plane and the directional change of the striations on either side.
© Rob Lavinsky & irocks.com