This is an orbicular jasper, the semi precious gemstone Ocean Jasper is from the Mahajanga Province, Madagascar.
Orbicular jasper is a jasper whose pattern consist of orb or sphere shapes.
This gemstone cabochon material known as Ocean Jasper is a variety is silicified rhyolite flow from off the northwest coast of Madagascar. The mining area stretches for about 120 miles on the remote and rugged western coastline, on the northernmost part of this island nation. Ocean Jasper can only be seen and collected at low tide. The area has no road, so the material must be transported by boat.
Ocean Jasper was first written about in 1922 and then the location was actually lost for almost 80 years!
Ocean Jasper was named for its location as well as its resemblance to the foam of the ocean as it recedes back into the ocean, with its wavy patterns of green-gray, white, cream, beige, brown, pink and maroon. Occasionally this gemstone cabochon material will have translucent areas, or beautiful pockets of natural green or white crystals.
Jasper is a member of the Chalcedony family with a hardness of 6.5-7. Ocean Jasper cabochons take a great polish and wear well.
Unfortunately the sources have been depleted and good quality rough is increasingly hard to find.
Metaphysical Properties of Ocean Jasper: Ocean Jasper is believed to teach responsibility and patience, as well as aid in regulating breathing for meditation. It is a stone of joy and high spirits and may be beneficial to those who suffer from depression.