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Hausmannite - N'Chwaning II Mine, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
(#:MINS7321)
Showy small floating specimen featuring some black Haussmannite octahedra xls. up to 1,0 cm. Very aesthetic, though small specimen from a world known locale.
Formula :
Mn
2+
Mn
2
3+
O
4
System:
tetragonal
Hardness:
5½
Rarity:
not common
Strunz id:IV/B.5-10 - OXIDES and HYDROXIDES
Name origin:
Named by Wilhelm Haidinger in in 1827 in honor of Johann Friedrich Ludwig Hausmann (1782-1859), Professor of Mineralogy, University of Göttingen, Germany.
Specimen weight:10 gr.
Crystal size:Up to 1,0 cm
Overall size: 22mm x 20 mm x 28 mm
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