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满肉南红玛瑙与红碧石区别在哪
更新时间: 2020-08-20 00:00:00  

1、南红玛瑙的打孔很有独特的地方,可能为大料先双面打孔再出珠,在经太长时间的使用,孔内磨损十分光滑;

2、形制对比,南红玛瑙形状相对更小,颜色均匀的体积更小,常用来做珠子或挂件等,常见的有橄榄型勒子,正圆珠,鼓形珠,桶形珠,车轮珠,算盘珠,瓜珠,隔片,滴型珠,也有根据料块所做的各种雕件;

3、玛瑙都同时含有三价铁离子和二价铁离子两种离子,在氧化性气氛下,通过简单加热方式就会让二价铁离子氧化成三价铁离子,从而让玛瑙转换为红碧石;

4、红碧石料脆,容易出现类似玻璃的崩口,色闷,俗称死色,缺乏清亮感觉,无法达到真正纯正艳丽的红色。显微镜下有细微的火劫纹,这是由于高温造成。

关键词: 玛瑙 区别

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