单词 | anhydrite |
释义 | Word Frequency anhydrite(ænˈhaɪdraɪt) noun a colourless or greyish-white mineral, found in sedimentary rocks. It is used in the manufacture of cement, fertilizers, and chemicals. Composition: anhydrous calcium sulphate. Formula: CaSO4. Crystal structure: orthorhombic Word origin C19: from anhydr(ous) + -ite1 |
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