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如何鉴别羊脂玉真假
更新时间: 2020-07-01 00:00:00  

羊脂玉的鉴别须满足五点,即质地纯、结构细、水头足、颜色羊脂白、油性重。

1、质地纯,羊脂玉赋存于透闪石岩岩相中透闪石矿物含量达到百分之99羊脂白玉硬度为6到6、5,仅次于翡翠,韧性和耐磨性确是玉石中最强,质地致密,化学性质极稳定;

2、结构细,羊脂玉中显微纤状、绒毛状、毡状透闪石晶体互相交织在一起,组成绒毛状结构、毡状结构、交织结构,在正交偏光下在相同角度内,不显示均一的消光现象;

3、水头足,水头是玉石透明度的称谓,在透闪石玉中常从厚度2毫米为标准,

关键词: 如何 鉴别 羊脂 真假

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