云南异极矿的宝石学特征

详细信息

Gemmological Characteristics of Hemimorphite from Yunnan Province

Department of Earth Sciences and Resources Management, Chang'an University, Xi'an 710054, China

摘要: 异极矿是一种少见的玉石品种,以纯正天蓝色者为佳;密度为3.34～3.46g/cm³,折射率为1.60～1.62,硬度为4～4.5。玉石的主要组成矿物为异极矿,另有少量的菱锌矿等碳酸盐矿物。电子探针成分分析表明,其颜色是由铜离子引起的,铜的含量越高,颜色就越鲜艳。依据其颜色与透明度,将云南异极矿分为4个级别。
- 异极矿 /
- 宝石学特征 /
- 云南
Abstract: Hemimorphite is a rare variety of jade.Hemimorphite with sky blue colour is of good quality.It has specific gravity of 3.34~3.46 g/cm³, refractive index of 1.60~1.62 and hardness of 4~4.5.T he main component is hemimorphite, and some carbonate such as smithsonite in small amount; Chemical composition analysis by microprobe shows that its colour is related to the content of CuO.Based on its colour and transparency, the quality of hemimorphite can be divided into four grades.
- hemimorphite /
- gemmological characteristic /
- Yunnan Province

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