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珍珠光彩 如何鉴别

作者:珠宝达人 点击:次 时间:2010-01-20 14:03

  浑圆美丽的珍珠深受世人所喜爱,由于市场上常有不肖商人冒充珍珠之假货,而使消费者受骗,以下方法可简单的鉴别珍珠的真伪。

  〈一〉齿磨法: 代用珍珠的面较为光滑,如果用牙齿轻磨,则会感觉滑溜,而天然珍珠的表皮是一层层的碳酸钙覆盖而成,用牙齿磨就有沙沙感,但这种方法,非业者所认同使用,因牙齿会损伤珍珠表面。

  〈二〉眼观法: 用肉眼或十倍放大镜观察,可看出代用珍珠表面的光滑,而珍珠都有微许的不规则或瑕疵,且代用珍珠是一批塑料原料压模制成,每颗相当整齐,但珍珠的表面就不竟相同体色或光彩都有少许的不同。

  〈三〉秤重法: 海水珍珠的比重2.54-2.78之间,淡水珍珠在1.77-1.86之间,而代用珍珠材质是塑料,比重为0.95,因此,用手秤秤看时,可感觉出代用珍珠较轻,而珍珠较重。

  〈四〉察孔法: 珍珠质较硬,在钻孔处,则显出锐利,代用珍珠质较软,钻孔处呈现凹陷之情形。

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