big chief ... they are made of enhanced mother-of-pearl and multi gemstones with a gold tone base. The multi gemstones may include Agate, Jasper (Picture, Red Leopard Skin, Yellow, and Multi-Color Jasper), Red Malachite, Abalone, Stabilized Turquoise and the oceans are enhanced shell powder.
The stones are cut to the countries and the islands particular shapes and then put together like a jigsaw puzzle ... and then polished.
A real show of craftmanship and skill ...