noun py·rochro·ite \ˌpīrəˈkrōˌīt, pīˈräkrəˌwīt\

Definition of pyrochroite



  1. :  a mineral Mn(OH)2 that is a natural manganous hydroxide

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Origin and Etymology of pyrochroite

Swedish pyrochroit, from pyr- + Greek chrōs color + Swedish -it -ite; from the fact that it becomes colored when heated — more at chromatic

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