cordierite

例句：

1. 1.The gemstone is a deep shade of red, resembling a ruby.
   这块宝石是深红色，像红宝石一样。
2. 2.The gemologist carefully examined the cordierite to determine its origins.
   宝石学家仔细检查了石榴石，以确定其来源。
3. 3.The cordierite was found in the mine, and it has been used for centuries as a decorative stone.
   石榴石在矿里被发现，它被用作装饰石头有好几个世纪了。