Branch Pearl Necklace Stilbite and lived in semi-tropical waters

and lived in semi-tropical waters

thereby preserving organic matter

the longest discovered tusk measuring over 16 feet long

forested with primitive plants

) The variation in colors are due to trace amounts of other elements replacing the calcium during the crystalline formation

Branch Pearl Necklace Stilbite and lived in semi-tropical watersPearls are objects produced within the soft mantle of a mollusk. Like the shell of the mollusk, a pearl is composed of a microcrystalline calcium carbonate that is deposited in thin concentric layers. Pearls can occur spontaneously in nature, but the bulk of the worlds pearls are obtained through farming, or culturing, pearls from freshwater mollusks. Wild pearls, or pearls occurring without human intervention, are incredibly rare. Seeding a pearl