alunite

[ al-yuh-nahyt ]

noun
  1. a mineral, a hydrous sulfate of potassium and aluminum, KAl3(SO4)2(OH)6, commonly occurring in fine-grained masses.

Origin of alunite

1
1865–70; <French alun (<Latin alūmenalum1) + -ite1
  • Also called al·um·stone [al-uhm-stohn]. /ˈæl əmˌstoʊn/.

Words Nearby alunite

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British Dictionary definitions for alunite

alunite

/ (ˈæljʊˌnaɪt) /


noun
  1. 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

Origin of alunite

1
C19: from French alun alum (from Latin alūmen) + -ite 1

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