These precious white patterns are indeed those of a coral, but of a fossil coral. From the Galaxea family, of which there are 7 varieties today, but this one comes from an area quite far from the sea, in the southwest of Madagascar. These hills were once a seabed, before the last ice age, but today the blocks found are dark gray and 1 meter below the ground. A woman from the Vezo - semi-nomadic fishermen - has succeeded near Morombe, in carving spheres in the white heart of these large blocks. A production very limited in number ...