hewettite

例句：

1. 1.The hewettite ore is mined from the mountains in the northwest of China.
   钨石矿从中国西北部的山区开采。
2. 2. Hewettite is a rare mineral that is used in electronics and other industries.
   钨石是一种稀有矿物，用于电子和其他行业。
3. 3. The hewettite mine has been closed due to environmental concerns.
   由于环境问题，钨石矿已被关闭。