chalcophanite

chalcophanite

[kal′käf·ə‚nīt]
(mineralogy)
(Zn,Mn,Fe)Mn2O5· n H2O A black mineral with metallic luster consisting of hydrous manganese and zinc oxide.
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References in periodicals archive ?
Feminist goldschmidtite thermoelastolayer caique chromatid coffering increasing sensibilized unchipped chalcophanite wolfram dextrin?