Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by
mindat.org
There are no ages for
Manganite
at
Johkoku Mine (Jôkoku Mine; Jokoku Mine), Kaminokuni, Hiyama Subprefecture, Oshima Peninsula, Hokkaidō, Japan