metahalloysite

例句：

1. 1. The mine is located in a metahalloysite area, which is rich in minerals.
   这个矿位于一个富含矿物的矿床区域。
2. 2. Metallurgy is the study of metals and their properties.
   冶金学是研究金属及其性质的学科。
3. 3. The discovery of this new type of metahalloysite has revolutionized our understanding of the earth's crust.
   这种新型矿床的发现极大地改变了我们对地球地壳的理解。