【摘要】 本文在前人多元矿物相图的基础上 ,考虑到天然优质祖母绿的赋存状态 ,分别对碱性和酸性多个水热体系进行了祖母绿晶体的溶解反应实验 ,通过溶解度大小对比优选出了H2 SO4复合体系 ,在该体系中祖母绿的溶解度较大而且溶解度温度系数成正增长 ,在该体系中使用温差水热法 (合成温度 5 0 0～ 6 0 0℃ ,压力 15 2～ 2 0 2 .6MPa)合成出了多粒祖母绿晶体。更多还原

【Abstract】 According to the BeO-Al 2O 3-SiO 2-H 2O mutil-phase mineral diagram and the properties of high quality natural emerald deposit and other synthetic emerald technology,many alkali and acid solutions for growing emerald crystal were tested,respectively.By contrasting the solubility of emerald in every solution,H 2SO 4 complex aqueous solution was confirmed as a new better solution which is adapted to grow emerald.In the new solution,the relation among pressure,temperature,solubility and concentration was studied through a series of experiments.It showed that the emerald solubility in such solution is relatively high,and that the solubility-temperature coefficient is positive.At last,in 2.2N H 2SO 4 complex solution, many emerald crystals were grown at 500-600℃ and 152-202.6MPa successfully.更多还原