固溶体60%NaAlSi2O6-40%CaMgSi2O6在高温高压下的相图的研究

The Phase Diagram of Solid Solution 60%NaAlSi2O6-40%CaMgSi2O6 at High Temperatures and High Pressures

Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130021, China

摘要: 在1.0~5.0 GPa、700~1 750 ℃条件范围内，对固溶体0.6NaAlSi2O6-0.4CaMgSi2O6进行了研究，探讨了该固溶体在高温高压下的存在行为，研究了由非晶态玻璃向翡翠转化过程中p-T作用的相图，得到的透辉石翡翠的晶胞参数为a=0.943 9 nm，b=0.857 3 nm，c=0.523 3 nm，=107.28和V=0.417 02 nm3。本实验中合成的宝石级翡翠为色泽温润，具有玻璃光泽，半透明的极富观赏性的透辉石翡翠。
- 透辉石 /
- 翡翠 /
- 高压 /
- 相图 /
- 宝石
Abstract: The solid solution, 60%NaAlSi2O6-40%CaMgSi2O6 was studied under 1.0~5.0 GPa, 700~1 750 ℃ by using a cubic anvil press. A high-temperature and high-pressure phase diagram for this 60%NaAlSi2O6-40%CaMgSi2O6 solid solution was obtained. A translucent jewel (Jd0.6Di0.4) was obtained in our experiment, surface of which shines with a glorious green color. The unit cell parameters of synthetic Jd0.6Di0.4: a=0.953 9 nm, b=0.857 8 nm, c=0.523 3 nm, =107.28, and V=0.417 02 nm3.
- diopside /
- jadeite /
- high pressure /
- high pressure /
- phase diagram