- calvonigrite
- кальвонигрит (кристаллический псиломелан)
* * *• кальвонигрит• кристаллический псиломелан
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Psilomelane — Infobox mineral name = Psilomelane category = boxwidth = boxbgcolor = caption = A native sample of psilomelane formula = The general formula Ba(Mn2+)(Mn4+)8O16(OH)4 or as (Ba,H2O)2Mn5O10 Barium Manganese Oxide Hydroxide molweight = 590.03 gm… … Wikipedia