umangite

例句：

1. 1. The umangite in the cave is a rare mineral that has been found in China for centuries.
   洞穴中的乌蒙石是一种在中国发现了几百年的稀有矿物。
2. 2. The umangite is said to have healing properties, and it is often used in traditional Chinesemedicine.
   据说乌蒙石具有治疗功效，在传统中医中经常使用。
3. 3.The umangite formation is a geological wonder, with its unique textures and colors making it a popular tourist attraction.
   乌蒙石形成是一个地质奇观，其独特的纹理和颜色使其成为受欢迎的旅游景点。