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Hausmannite Mineral Data

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General Hausmannite Information

Help on Chemical  Formula: Chemical Formula: Mn++Mn+++2O4
Help on Composition: Composition: Molecular Weight = 228.81 gm
   Manganese  72.03 %  Mn  103.50 % Mn2O3
   Oxygen     27.97 %  O
             ______        ______ 
             100.00 %      103.50 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn3+3O4
Help on Environment: Environment: A primary mineral in hydrothermal veins. Also produced by metamorphism of manganiferous rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1827
Help on Locality: Locality: Ilmenau and nearby at Orenstock, in Thuringia, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the German mineralogist, J. F. L. Hausmann (1782-1859).
Help on Name Pronunciation: Name Pronunciation: Hausmannite + Pronunciation Say HAUSMANNITE
Help on Synonym: Synonym: Arseniodialyte
  ICSD 68174
  PDF 24-734

Hausmannite Image

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  Ephesite   Hausmannite

Comments: Flesh-colored ephesite associated with dark brownish black hausmannite.
Location: Gloucester mine. Postmasburg, Cape province. S. Africa. Scale: 5.5 x 5 cm.
© Fabre Minerals

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Comments: Black hausmannite crystals with minor brucite.
Location: Wessels Mine, Kalahari, South Africa. Scale: 6.5 x 6 cm.
© John Veevaert

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  Kombatite   Hausmannite

Comments: Yellow kombatite crystals in black hausmannite.
Location: Kombat Mine, Otavi, Namibia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

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  Fredrikssonite   Hausmannite

Comments: Red-brown elongated crystalline fredrikssonite in calcite with granular hausmannite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Filipstadite   Hausmannite

Comments: Dark minute grains of filipstadtite in hausmannite (slabbed specimen).
Location: Jacobsberg Mine, near Nordmark, Filipstad, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hausmannite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.63888
Help on Cell Dimensions: Cell Dimensions: a = 5.76, c = 9.44, Z = 4; V = 313.20 Den(Calc)= 4.85
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.49(1), 2.77(0.9), 1.544(0.8),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 1 0 0) ( 0 1 1) ( 0 0 1)

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Physical Properties of Hausmannite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Brownish black, Grayish.
Help on Density: Density: 4.7 - 4.84, Average = 4.76
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Pseudo Octohedral - Crystals show an octohedral outline.
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Sub Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: dark reddish brown

Optical Properties of Hausmannite

Help on Dichroism (e): Dichroism (e): dark gray.
Help on Dichroism (w): Dichroism (w): light gray.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.122 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.136 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2691,KPDmeas= 0.2736,KC= 0.3115
Ncalc = 2.46 - 2.51
Help on Optical Data: Optical Data: Uniaxial (-), e=2.15, w=2.46, bire=0.3100.
Help on RL Anisotrophism: RL Anisotrophism: Distinct.
Help on RL Bireflectance: RL Bireflectance: Weak.
Help on RL Color: RL Color: Gray, with deep blood red to reddish brown internal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Hausmannite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   21.50   18.80 
 420 nm   21.20   18.40 
 440 nm   20.90   17.90 
 460 nm   20.70   17.50 
 480 nm   20.50   17.20 
 500 nm   20.40   17.00 
 520 nm   20.40   16.70 
 540 nm   20.30   16.40 
 560 nm   20.10   16.10 
 580 nm   20.10   15.90 
 600 nm   20.00   15.70 
 620 nm   19.90   15.50 
 640 nm   19.90   15.40 
 660 nm   19.80   15.20 
 680 nm   19.80   15.10 
 700 nm   19.70   14.90 
Calculated Relative Intensity Colors of Hausmannite in Air
   0%   60% 100% 120% 180% 240% 300% 360% 420% 480% 540% 560%

Calculated Properties of Hausmannite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.46 gm/cc
note: Specific Gravity of Hausmannite =4.77 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001342538
Boson Index = 0.9998657462
Help on Photoelectric: Photoelectric: PEHausmannite = 19.02 barns/electron
U=PEHausmannite x rElectron Density= 84.86 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hausmannite is Not Radioactive

Hausmannite Classification

Help on  Dana Class: Dana Class: (07)Multiple Oxides
  (07.02)(A+ B++)2 X4 Spinel group
  (07.02.07)Dana Group Hausmannite MnMn2O4 I 41/amd 4/m 2/m 2/m Hetaerolite ZnMn2O4 I 41/amd 4/m 2/m 2/m Hydrohetaerolite Zn2Mn4O8•(H2O) I 41/amd 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.BB.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.B - Metal:Oxygen = 3:4 and similar
  04.BB -With only medium-sized cations
04.BB.10 Hausmannite MnMn2O4 I 41/amd 4/m 2/m 2/m
04.BB.10 Iwakiite Mn(Fe,Mn)2O4 P 41/nnm 4/m 2/m 2/m
04.BB.10 Hydrohetaerolite Zn2Mn4O8•(H2O) I 41/amd 4/m 2/m 2/m
04.BB.10 Hetaerolite ZnMn2O4 I 41/amd 4/m 2/m 2/m

Other Hausmannite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Hausmannite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - Franklin Minerals(Dunn)
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - HyperPhysics
13 - MinDAT
14 - Mineralienatlas (Deutsch)
15 - Online Mineral Museum
16 - QUT Mineral Atlas
17 - Ruff.Info
18 - Scandinavian mineral gallery

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Dana No: Strunz No: 04.BB.10





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