steinmannite

例句：

1. 1.The steinmannite crystals are known for their unique luster and beauty.
   斯特恩曼石以其独特的光泽和美丽而闻名。
2. 2.The mineralogist found a rare steinmannite in the local rock formation.
   矿物学家在当地的岩石中发现了稀有的斯特恩曼石。
3. 3. Due to its rarity, steinmannite is highly valued by collectors and dealers alike.
   由于其稀有性，斯特恩曼石受到收藏家和交易商的高度追捧。