Ocean Jasper

Ocean Jasper (Orbicular Jasper) is a silicified Rhyolite or tuff (light, porous rock formed by consolidation of volcanic ash) that has Quartz and Feldspar crystallized into radial aggregates of needle-like crystals forming orbicular (spherical or ring) structures. It's mainly found on the coast of Madagascar in a wide variety of colors.

Also called: Ocean Agate, Ocean Jasper, Orbicular Agate, Orbicular Jasper