Obviously, it is the key to the final settlement of the typomorphic characteristics of the origin and occurence of the different gem types and establishing a geochemical database of important mines.

• 显然，确定各种不同类型宝玉石产地来源的标型特征及建立相关重要宝石产地的地球化学数据库，是最终解决宝玉石产地来源鉴定问题的关键。