硬玉的结晶习性、生长环境与翡翠质量的研究

Crystal habits and growing environment of jadeits and quality of the Fei-ts′ui

目的对翡翠质量进行评价。方法运用硬玉的晶体化学特征及其生长机制原理,结合地质环境条件对硬玉最终形态的形成因素和影响进行研究分析。结果在硬玉的形成环境中,含有一定数量和种类的Cr等杂质离子,对翡翠的颜色和纤维状集合体的形成有利;硬玉在高压低温环境中形成的隐晶状纤维状的集合体对高品质翡翠的形成有利。结论硬玉呈隐晶状纤维状集合体结构与一定含量与种类的杂质离子的存在,是形成高质量翡翠的主要有利因素。

Aim To appraise Fei-ts＇ui quality. Methods By crystal chemistry and growing mechanism of the jadeit,a study is made on its shape effects and Fei-ts＇ui quality in the geologic environment. Results It he advantageous to forming cryptocrystalline and fibrous aggregate of jadeits in the high pressure and low temperature; to forming fibrous aggregate and coulour of jadeits in having transition ioncation environment; to forming good quality of Fei ts＇ui. Conclusion It can make the best quality feits＇ui in the cryptocrystalline and fibrous aggregate of jadeits and having transition ioncations in the environment.