This ocean jasper is an orbicular (radiating-round) jasper that can contain a combination of up to 10 colors. It was mined off the coast of Ihosy in northen Madagascar which is how it got it’s name. This slab is polished to a glassy luster on both sides. The base is sawed for easy display. It contains vugs lined with green agate crystals. The piece measures 6 3/4 x 5 5/16 x 1/4 inches or 17.2 x 13.4 x .6 cm.