单词 | alunite |
释义 | alunite [`al·yǝ´nīt] MINERALOGY KAl3(SO4)2(OH)6 A mineral composed of a basic potassium aluminum sulfate; it occurs as a hydrothermal-alteration product in feldspathic igneous rocks and is used in the manufacture of alum. Also known as alumite; alum rock; alumstone. |
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