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Name: |
hausmannite |
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Class: |
Oxide/Hydroxides |
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Chemistry: |
Mn3O4 |
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Color(s): |
brown t- reddish |
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Hardness: |
5.5 |
SpecGrav: |
4.5-4.8 |
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Fracture: |
uneven |
Cleavage: |
perfect |
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Crystal: |
tetragonal; pseudo-octahedral, massive, |
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Envronment: |
metamorphic manganese deposits, lining hydrothermal veins |
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Association: |
braunite, manganite, pyrolusite, psilomelane, barite |
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Locals: |
Germany / England / Bulgaria / Sweden / Switzerland / USSR / NV., USA / Brazil / India |
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Misc: |
after the German mineralogist J. F. L. Hausmann (1782-1859) |
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Photos |
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1.) N¹Chwaning II Mine, South Africa |
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