White Pearl Necklace 24"

Fresh water pearls from Thailand 24 inchs long. The Freshwater Pearl in Thailand Pearl compose of Calcium Carbonate (CaCO3) (aragonite 82 ? 86 %), conchiolin 10 ? 14 % and water 2 ? 4 %. The hardness is 3.5 ? 4.5 %. The specific gravity is 2.7.