koellite

例句：

1. 1.The koellite was used to make the famous crystal ball.
   科利特石被用来制作著名的水晶球。
2. 2.The koellite is a rare mineral that can be found in some volcanic areas.
   科利特石是一种稀有矿物，可以在一些火山地区找到。
3. 3.The koellite has been used in jewelry making for centuries.
   科利特石在珠宝制作中已经使用了数百年。