明矾石是高岭土中难以除去的有害杂质，高岭石也是明矾石矿石中的有害杂质。
Alunite is a harmful impurity which is difficult to remove from kaolinite and so is kaolinite in alunite ore.
峨嵋叶蜡石矿储量大，矿石类型主要有石英叶蜡石型、硬水铝石叶蜡石型、叶蜡石型、明矾石叶蜡石型等。
Emei pyrophyllite deposit possesses a large amount of reserves with different types of pyrophyllite ore, such as quartz-pyrophyllite, diaspore-pyrophyllite, pyrophyllite and alunite-pyrophyllite etc.
明矾石是高岭土中难以除去的有害杂质，高岭石也是明矾石矿石中的有害杂质。
Alunite is a harmful impurity which is difficult to remove from kaolinite, and so is kaolinite in alunite ore.
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