Show Mineral Details
Mineral: |
Birnessite |
English Trivial: |
|
Formula: |
(Na,Ca,K)(Mn⁺⁴,Mn⁺³)₂O₄·1.5H₂O |
Mineralogical Group: |
Mn oxides/hydroxides |
Petrological Group: |
heavy minerals |
Crystallographic System: |
Prismatic |
Strunz Classification: |
IV/F |
Molar Mass in g/mol: |
215.71 |
Density in g/cm³: |
3 |
Comment: |
member of the group of Hydrous Manganese Oxides (HMO); empirical formula Na0.3Ca0.1K0.1Mn4+Mn3+O4·1.5(H2O) |
|
1 data sets were retrieved
|