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如何鉴别老玛瑙
更新时间： 2020-09-16 00:00:00  

鉴别老玛瑙的方法如下：

1、成色：真玛瑙色泽鲜明，细腻光亮，假玛瑙的色和光均较差，二者对比明显，天然玛瑙颜色分明，条带明显，仔细观察，在红色条带处可见密集排列的细小斑点；

2、质地：假玛瑙是石料仿制，与真玛瑙相比质地软，用玉在假玛瑙上可划出痕迹，而真品则划不出；

3、做工：优质玛瑙的生产工艺严格且先进，表面光亮度好，镶嵌牢固，周正，无划痕，裂纹；

4、温度：真玛瑙冬暖夏凉，人工合成玛瑙随外界温度而变化，天热变热，天凉变凉。

关键词： 如何 鉴别 玛瑙

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