合成压力、温度对人工翡翠宝石编织结构影响的研究

Effect of Pressure and Temperature on the Knitting Structure of Synthetic Jadeite Gem

在1.8～5.5GPa、1150～1450℃范围内均可实现由具有翡翠成份的非晶玻璃态到翡翠结构(单斜晶系)结晶态的转化。发现人工翡翠宝石的显微织构随合成压力、温度的变化很大,但其晶胞参数变化不大。晶粒细密编织紧凑的人工翡翠显微结构特征,宏观上表现出质地细腻、色泽纯正、最富有观赏价值的特点;其最佳合成条件为:压力5,1 GPa,温度1150℃。热稳定性实验表明,人工翡翠与天然翡翠具有相同的稳定性。

The transition from the noncrystal state containing jadeite components to thecrystal state having jadeite structure can be realized under the pressure range 1.8～5.5 GPa and temperature range 1150～1450℃.The knitting structure of the syn-thetic jadeite can be changed obviously with the change of synthetic pressure andtemperature,but only little change in cell parameters of the jadeite.The syntheticjadeite gem has a good quality in colour and luster,and the same stability as thenatural jadeite has.The synthetic jadeite is valuable for view and admire.Theoptimum condition for synthesizing jadeite is at 1150℃ and under 5.1 GPa.