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alunite
[ al-yuh-nahyt ]
/ ˈæl yəˌnaɪt /
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noun
a mineral, a hydrous sulfate of potassium and aluminum, KAl3(SO4)2(OH)6, commonly occurring in fine-grained masses.
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Also called al·um·stone [al-uhm-stohn]. /ˈæl əmˌstoʊn/.
Words nearby alunite
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use alunite in a sentence
British Dictionary definitions for alunite
alunite
/ (ˈæljʊˌnaɪt) /
noun
a white, grey, or reddish mineral consisting of hydrated aluminium sulphate. It occurs in volcanic igneous rocks and is a source of potassium and aluminium compounds. Formula: KAl 3 (SO 4) 2 (OH) 6
Word Origin for alunite
C19: from French alun alum (from Latin alūmen) + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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