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Pseudorutile Mineral Data
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General Pseudorutile Information
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Chemical Formula: |
Fe+++2Ti3O9 |
Composition: |
Molecular Weight = 399.33 gm |
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Titanium 35.97 % Ti 60.01 % TiO2 |
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Iron 27.97 % Fe 39.99 % Fe2O3 |
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Oxygen 36.06 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Fe3+2Ti3O9 |
Environment: |
Alteration in ilmenite placers and beach sands. |
IMA Status: |
Approved IMA 1966 |
Locality: |
Common and widespread alteration product of ilmenite. Link to MinDat.org Location Data. |
Name Origin: |
Named for the composition and as an intermediate product between ilmanite and rutile. |
Name Pronunciation: |
Pseudorutile + Pronunciation |
Synonym: |
Arizonite |
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ICSD 4131 |
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Kleberite-(OH) |
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PDF 47-1777 |
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Pseudorutile Image |
Images:
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Pseudorutile
Comments: Dark brown grain of hydroxyian pseudorutile (Kleberite), from a heavy mineral concentrate.
Location: Königshain, Mittweida, Saxony, Germany.
Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag |
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Pseudorutile Crystallography
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Axial Ratios: |
a:c = 1:0.32104 |
Cell Dimensions: |
a = 14.375, c = 4.615, Z = 5; V = 825.88 Den(Calc)= 4.01 |
Crystal System: |
Trigonal - Trapezohedral H-M Symbol (3 2) Space Group: P 322 |
X Ray Diffraction: |
By Intensity(I/Io): 1.686(1), 2.481(0.8), 2.183(0.7), |
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Physical Properties of Pseudorutile
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Cleavage: |
None |
Color: |
Black, Brown, Red, Gray. |
Density: |
3.8 |
Diaphaneity: |
Opaque |
Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
Hardness: |
3.5 - Copper Penny |
Luster: |
Sub Metallic |
Streak: |
reddish brown |
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Optical Properties of Pseudorutile
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Optical Data: |
NCalc= 2.45 - from Gladstone-Dale relationship (KC = 0.3618) where Ncalc=Dcalc*KC+1 NCalc= 2.37 - from Gladstone-Dale relationship (KC = 0.3618) where Ncalc=Dmeas*KC+1
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Calculated Properties of Pseudorutile
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Electron Density: |
Bulk Density (Electron Density)=3.82 gm/cc note: Specific Gravity of Pseudorutile =4.01 gm/cc. |
Fermion Index: |
Fermion Index = 0.05 Boson Index = 0.95 |
Photoelectric: |
PEPseudorutile = 14.57 barns/electron U=PEPseudorutile x rElectron Density= 55.60 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Pseudorutile is Not Radioactive |
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Pseudorutile Classification
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Dana Class: |
08.04.02.01 (08)Multiple Oxides with Nb, Ta, and Ti |
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(08.04)with miscellaneous formulae |
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(08.04.02)Dana Group |
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08.04.02.01 Pseudorutile Fe2Ti3O9 P 322 3 2 |
Strunz Class: |
04.CB.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.C - Metal:Oxygen = 2:3, 3:5, and Similar |
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04.CB -With medium-sized cations |
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04.CB.25 Ilmenorutile (Ti,Nb,Fe)O2 P 4/mnm 4/m 2/m 2/m |
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04.CB.25 Pseudorutile Fe2Ti3O9 P 322 3 2 |
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Other Pseudorutile Information
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References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Pseudorutile :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
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Print or Cut-and-Paste your Pseudorutile Specimen Label here :
Pseudorutile
Fe+++2Ti3O9
Dana No: 08.04.02.01 Strunz No: 04.CB.25
Locality:
Notes:
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