brown millerite

例句：

1. 1.The brown millerite is a popular stone for carving.
   棕色的米勒石是雕刻的热门石材。
2. 2. The brown millerite has been used in ancient architecture for thousands of years.
   棕色的米勒石在古代建筑中被使用了数千年。
3. 3. The brown millerite is a valuable mineral resource.
   棕色的米勒石是一种宝贵的矿物资源。