庄它武里地处曼谷以东 200公里处， 100多年前，这里因发现了红、蓝宝石而受到了世人的关注。二十世纪中叶，大规模的宝石开采，使宝石业成为当地的三大经济支柱之一。到了 1980年代，庄它武里已是世界红宝石和蓝宝石的主要集散地之一，但本地的宝石资源已日趋枯竭。 　　尽管 Zhuangtan Buri is located 200 kilometers east of Bangkok. More than 100 years ago, it was spotlighted by the discovery of red and sapphire. In the middle of the 20th century, large-scale gem mining has made the gemstone industry one of the three major economic pillars in the region. In the 1980s, Zhuangtrabili was one of the major distribution centers of ruby ​​and sapphire in the world, but the local gem resources have become increasingly depleted. in spite of