- Corundum (Var: Sapphire)
- Thumbnail, 1.4 x 0.7 x 0.6 cm
- Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka
This interesting collection took a long time to assemble. It consists of a lot of sharp sapphire crystals, all floaters, most very different from one another in color or form. This illustrates the diversity of corundum crystals, from this classic locality.