varviciten.
/ˈvɑːvɪsʌɪt/ Mineralogy.
‘An impure pyrolusite or wad, resulting from the alteration of manganite’ (Chester).
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the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > manganese dioxide
brownstone1657
manganese1662
magnesia1677
soap of glass1815
pyrolusite1828
varvicite1829
polianite1849
manganese dioxide1866
pelagite1876
manganese oxide1882
1829 R. Phillips in Philos. Mag. 2nd Ser. 6 282 What you examined was principally manganite, while the mineral which I analysed was the new oxide, and which, should you agree with me as to its composition, I propose to call Varvicite.
1839 Penny Cycl. XIV. 381/1 Varvicite occurs massive and in pseudo-crystals. Composed of thin plates and fibres.
1868 H. Watts Dict. Chem. Varvicite, a manganese-ore from Warwickshire.
This entry has not yet been fully updated (first published 1916; most recently modified version published online June 2018).
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n.1829