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ATHENA

MINERALOGY

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Mineral: HAUSMANNITE
Formula: Mn2+Mn3+2O4
Crystal System: Quadradic (Tetragonal)
Group: Spinel supergroup. Oxyspinel group. Spinel subgroup
IMA Number: 1828
References: L 7 (1990), 8; HB3 (1997); Minerals 9 (2019), 343
Type Locality: Ilfeld, Harz, Germany
Hausmannite
Hausmannite showing twinnings. Reflected light, nearly crossed nicols, 0.3 mm.
Långban, Sweden.
Photo © Kjell Gatedal, School of Mines and Metallurgy, Filipstad, Sweden.
See also: athena.unige.ch -> mineral pictures

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