Black Pearl Beads

Black pearl generally can be divided into the following three categories: 1. Natural Black Pearl Implanted nucleus breeding black pearl ( cultured in Pinctada Margaritifera cumingi or in a mother of pearl). The shellfish lives in aquatorium of coral reef belonging to French Polynesia. 2. Rare brown to black nuclear-free cultured Black Pearl Beads The colors of pearl vary due to the increased modified ones, including dyed black pearl, radiation pearl, and the emerging so-called " laser processing" pearl. 3. The imitation pearl made of black shell. Some imitation pearl are just ball core covered with a layer of black essence which is made of de orient membrane on surface, or they are beads shaped black shells which are shining with pearl gloss after polishede. It's very critical to differentiate natural pearl from cultured black pearls, dyed pearls and imitation pearls. Observing the luster of pearls coverd with membrane carefully, you will find that their gloss comes from the thin layer of Polymer. While the Black Shell Pearl Beads Wholesale

without processed are from the surface layer of pearls. Observing the abnormal different reflexes to colors conducted by the top of pearls will be conducive to the pearl detection. Black pearls processed by this method are light purple on the top with green hue around. The characteristics of high quality pure black pearls include: 1. The surface of pearls are rather smooth. 2. Touching them, you'll feel sticky. 3. Stack lamellae of pearl layers are very difficult fo find, and there are only a layer of concave colorless cover.