Hausmannite R060512


Name: Hausmannite
RRUFF ID: R060512
Ideal Chemistry: Mn2+Mn3+2O4
Locality: N'Chwaning II mine, Kalahari Manganese Field, northern Cape Province, Republic of South Africa
Source: Michael Scott S100308 [view label]
Owner: RRUFF
Description: Group of black pseudo-octahedra with striations parallel to the (001) plane
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Hausmannite samples (4) ]
CHEMISTRY 
RRUFF ID: R060512.2
Sample Description: Microprobe fragment
Measured Chemistry: Mn2+0.99Mn3+1.98O4
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented and mounted on a pin
Pin ID: M00870
Orientation: Laser parallel to  c*  (0 0 1).     Fiducial mark perpendicular to laser is parallel to  a   [1 0 0].
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060512
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060512.1
Sample Description: powder
Cell Refinement Output: a: 5.7680(3)Å    b: 5.7680(3)Å    c: 9.4517(9)Å
alpha: 90.°    beta: 90.°    gamma: 90.°   Volume: 314.46(4)Å3    Crystal System: tetragonal
  File Type Information Close
Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Hausmannite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Turner E (1828) Chemical examination of the oxides of manganese. Part II. On the composition of the ores of manganese described by Mr. Haidinger, The Philosophical Magazine, 4, 96-104   [view file]

Haidinger M W (1831) II. Pyramidal Manganese-ore Hausmannite, Transactions of the Royal Society of Edinburgh, 11, 127-129   [view file]

Aminoff G (1926) On the crystal structure of hausmannite (MnMn2O4), Zeitschrift für Kristallographie, 64, 475-490

Gavarri J R, Arabski J, Jasienska S, Janowski J, Garel C (1985) Structural evolution of manganosite: comparison of properties of nonstoichiometric manganese and iron monoxides., Journal of Solid State Chemistry, 58, 56-70

Jarosch D (1987) Crystal structure refinement and reflectance measurements of hausmannite, Mineralogy and Petrology, 37, 15-23

Baron V, Gutzmer J, Rundlöf H, Tellgren R (1998) The influence of iron substitution on the magnetic properties of hausmannite, Mn2+(Fe,Mn)3+2O4, American Mineralogist, 83, 786-793   [view file]

Gillot B, El Guendouzi M, Laarj M (2001) Particle size effects on the oxidation-reduction behavior of Mn3O4 hausmannite, Materials Chemistry and Physics, 70, 54-60