Romanechite | |
Chemical Formula |
(Ba,H2O)2(Mn+4,Mn+3)5O10 |
Species |
Oxides & Hydroxides |
Crystal System |
Monoclinic |
Mohs Scale |
5-6 |
Specific Gravity |
4.71 |
Color |
Greyish black, black |
Streak |
Black, brown |
Luster |
Sub-Metallic, Dull |