synthetic gem

It is helpful of study in color evaluation of ruby and the relationship of color-causing ion and color Parameter to ruby evaluation index, and synthetic gem.

对红宝石的颜色评价及致色离子与颜色参数关系的研究有助于红宝石评价体系的健全，也为红宝石的合成提供一定的数据资料。

It is helpful of study in color evaluation of ruby and the relationship of color-causing ion and color Parameter to ruby evaluation index, and synthetic gem.

对红宝石的颜色评价及致色离子与颜色参数关系的研究有助于红宝石评价体系的健全，也为红宝石的合成提供一定的数据资料。

examples are cited of several treated and synthetic gem materials that currently present identification challenges.

介绍了几种优化处理及合成宝石材料的鉴定实例，这些材料对当今的宝石鉴定提出了挑战。