polianite


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polianite

(ˈpɒlɪəˌnaɪt)
n
(Geological Science) mineralogy a manganese dioxide occurring as hard crystals
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References in periodicals archive ?
The old term "polianite" is sometimes still used to refer to pyrolusite pseudomorphs after manganite (Bayliss, 2000).
Attorney James Polianites of the Boston office of the regional solicitor handled the negotiations on behalf of MSHA.