jarositen.
/ˈdʒarəʊsʌɪt/ Mineralogy.
A hydrous sulphate of iron and potassium, occurring usually in yellowish rhombohedral crystals.
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jarosite1854
krausite1931
1854 J. D. Dana Syst. Mineral. (ed. 4) 389 Jarosite..may be isomorphous with alunite.
1883 M. F. Heddle in Encycl. Brit. XVI. 402/2 Jarosite..fibrous in nodules or incrusting.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018).
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n.1854