trechmannite

例句：

1. 1. Trechmannite is a mineral that occurs in the form of small, white crystals.
   特雷克曼石是一种以小白色晶体形式出现的矿物。
2. 2. The trechmannite deposit was discovered by accident during a geological survey.
   在一次地质调查中偶然发现了特雷克曼矿床。
3. 3. Trechmannite has been used in various applications due to its unique properties.
   由于其独特的性质，特雷克曼石被用于各种应用。