Natural pearl identification
Since the formation of natural pearls requires complex environmental and factors, natural pearls are rare, resulting in the inability of the general public to meet the needs of natural pearls. Due to the scarcity of natural pearls, the public demand for pearls is very large, and the emergence of many cultured pearls has gradually emerged. Here are some natural pearl identification methods to prevent consumers from buying back cultured pearls.
1. The pearls are different in shape, with natural iridescent pearlescence and metallic luster reflection, so the gloss of each pearl is different. The artificial beads are neatly shaped and the pearls are dim.
2, the pearls rub each other after the sensation, and the glass friction still feels awkward. The fake beads have a smooth feel after rubbing against each other, and the fake beads and the glass also have a smooth feel.
3, the pearl touches the skin with a cool feeling, with the mouth to the pearl, the surface will appear aerosol. The fake beads touch the skin with a smooth, warm feeling.
4, the pearl is burnt with a small fire, the appearance will turn black (smoke), the brilliance is still the same, the fire is burning, there is a popping sound, the natural pearl is stronger than the cultured pearl, and the lobes are countless thin curved small fragments. Silver-gray with a colorful luster and a translucent periphery. The shape of the artificial beads is uniform and uniform, burnt with fire, and has a plastic smell. The ash is flat or broken, and the color is black and dull.
5, the pearl is placed in the banana water for a few minutes, shaking, glory is not reduced. The fakes are shaken slightly in the banana water. The surface gloss is completely detached in a few minutes. The remaining beads are milky white, milky yellow or clean white, translucent, dull, some with fine parallel texture, and some visible concaves. Point or round hole.
6. Pearls with similar weights can fall freely on the glass plate from a height of 60 cm. The jumping height of seawater pearls can reach 15-25 cm, and freshwater pearls can reach 5-10 cm. The fake product is free to fall on the glass plate because of the addition of the coating layer, and the jump height is low.
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