NWOT Very rare blue Obsidian (glass) from the Temple of Isis at Philae in Egypt. The original Temple was moved after flooding and the obsidian was found underneath and can be found in various shades. This piece is 2.75" x 2.25" x 1.8". I brought this back from a trip 11/18/22. The Temple was built for the Goddess Isis. They are sold on the transport boats and on the entrance bridge by the local Nubian village.