Filipstadite Mineral Data

Filipstadite Mineral Data
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General Filipstadite Information

Help on Chemical Formula: Chemical Formula: (Mn++,Mg)4Sb+++++Fe+++O8
Help on Composition: Composition: Molecular Weight = 475.43 gm
   Magnesium   7.67 %  Mg   12.72 % MgO
   Manganese  28.89 %  Mn   37.30 % MnO
   Aluminum    0.34 %  Al    0.64 % Al2O3
   Iron       10.57 %  Fe   15.12 % Fe2O3
   Antimony   25.61 %  Sb   34.02 % Sb2O5
   Oxygen     26.92 %  O
             ______        ______ 
             100.00 %       99.80 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+2.5Mg1.5Fe3+0.9SbAl0.06O8
Help on Environment: Environment: Metamorphosed Fe-Mn deposits.
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Langban and Jakobsberg, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the town of Filipstad, Sweden, which is near the mine.
Help on Name Pronunciation: Name Pronunciation: Filipstadite + Pronunciation Say FILIPSTADITE
 

Filipstadite Image

Click Here for Larger Filipstadite Image in a New Browser Window Images:
Click Here for Larger Filipstadite Image

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

Filipstadite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1:1:0.7057
Help on Cell Dimensions: Cell Dimensions: a = 36.7, b = 36.7, c = 25.9, Z = 216; V = 34,884.45 Den(Calc)= 4.89
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: pseudo ISO
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.56(1), 1.527(0.7), 1.662(0.6),2.157(0.4), 1.1251(0.3), 3.05(0.3), 4.97(0.2),
Click Here for Large Filipstadite Structure Window Crystal Structure:

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Dunn P J , Peacor D R , Criddle A J , Stanley C J , American Mineralogist , 73 (1988) p.413-419, Filipstadite, a new Mn-Fe3+-Sb derivative of spinel, from Lanban, Sweden, Locality: Langban, Varmland, Sweden, Note: cubic subcell, O arbitrarily placed in ideal eutactic position

 

Physical Properties of Filipstadite

Help on Cleavage: Cleavage: None
Help on Color: Color: Black, Dark brownish gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Pseudo Octohedral - Crystals show an octohedral outline.
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Metallic
Help on Streak: Streak: brown
 

Optical Properties of Filipstadite

Help on Optical Data: Optical Data: Biaxial (?)
  NCalc= 1.98 - from Gladstone-Dale relationship (KC = 0.1999) where Ncalc=Dcalc*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Weak, in shades of dark brownish gray.
Help on RL Color: RL Color: Gray, with amber-orange, brown, or red internal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Filipstadite in Air
λ R  ∑ R(λ) 
 400 nm   12.80   
 420 nm   12.50 
 440 nm   12.40 
 460 nm   12.20 
 480 nm   12.00 
 500 nm   11.90 
 520 nm   11.80 
 540 nm   11.70 
 560 nm   11.60 
 580 nm   11.60 
 600 nm   11.60 
 620 nm   11.60 
 640 nm   11.50 
 660 nm   11.50 
 680 nm   11.40 
 700 nm   11.40 
Calculated Relative Intensity Colors of Filipstadite in Air
Relative
Intensity		    0%   80% 100% 160% 240% 320% 400% 480% 560% 640% 720% 760%
R                        
 

Calculated Properties of Filipstadite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.52 gm/cc
note: Specific Gravity of Filipstadite =4.89 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEFilipstadite = 92.73 barns/electron
U=PEFilipstadite x rElectron Density= 419.07 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Filipstadite is Not Radioactive
 

Filipstadite Classification
Help on Dana Class: Dana Class: 07.02.13.01 (07)Multiple Oxides
  (07.02)(A+ B++)2 X4 Spinel group
  (07.02.13)Dana Group
 
07.02.13.01 Filipstadite (Mn,Mg)4SbFeO8 pseudo ISO 2/m 2/m 2/m
 
07.02.13.02 Tegengrenite! (Mg,Mn)2Sb0.5(Mn,Si,Ti)0.5O4 R 3 or R 3- Trig
Help on Strunz Class: Strunz Class: 04.BB.05 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.05 Cochromite (Co,Ni,Fe)(Cr,Al)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Filipstadite (Mn,Mg)4SbFeO8 pseudo ISO 2/m 2/m 2/m
 
04.BB.05 Magnetite FeFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Gahnite ZnAl2O4 F d3m 4/m 3 2/m
 
04.BB.05 Chromite FeCr2O4 F d3m 4/m 3 2/m
 
04.BB.05 Galaxite (Mn,Mg)(Al,Fe)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Cuprospinel (Cu,Mg)Fe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Donathite? (Fe,Mg)(Cr,Fe)2O4 P 4/nnm 4/m 2/m 2/m
 
04.BB.05 Brunogeierite (Ge,Fe)Fe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Coulsonite FeV2O4 F d3m 4/m 3 2/m
 
04.BB.05 Hercynite FeAl2O4 F d3m 4/m 3 2/m
 
04.BB.05 Franklinite (Zn,Mn,Fe)(Fe,Mn)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Jacobsite (Mn,Fe,Mg)(Fe,Mn)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Magnesiochromite MgCr2O4 F d3m 4/m 3 2/m
 
04.BB.05 Magnesioferrite MgFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Magnesiocoulsonite MgV2O4 F d3m 4/m 3 2/m
 
04.BB.05 Manganochromite (Mn,Fe)(Cr,V)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Qandilite (Mg,Fe)2(Ti,Fe,Al)O4 F d3m 4/m 3 2/m
 
04.BB.05 Nichromite (Ni,Co,Fe)(Cr,Fe,Al)2O4 F d3m 4/m 3 2/m
 
04.BB.05 Spinel MgAl2O4 F d3m 4/m 3 2/m
 
04.BB.05 Ulvospinel TiFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Zincochromite ZnCr2O4 F d3m 4/m 3 2/m
 
04.BB.05 Trevorite NiFe2O4 F d3m 4/m 3 2/m
 
04.BB.05 Vuorelainenite (Mn,Fe)(V,Cr)2O4 F d3m 4/m 3 2/m
 

Other Filipstadite Information
Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Filipstadite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Filipstadite Specimen Label here :

Filipstadite

(Mn++,Mg)4Sb+++++Fe+++O8
Dana No: 07.02.13.01 Strunz No: 04.BB.05
Locality:

 

Notes: