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Ilmenorutile Mineral Data

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General Ilmenorutile Information

Help on Chemical  Formula: Chemical Formula: (Ti,Nb,Fe+++)O2
Help on Composition: Composition: Molecular Weight = 95.27 gm
   Titanium  35.18 %  Ti   58.69 % TiO2
   Niobium   19.50 %  Nb   27.90 % Nb2O5
   Iron      11.72 %  Fe   15.08 % FeO
   Oxygen    33.59 %  O
            ______        ______ 
            100.00 %      101.68 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ti0.7Nb0.2Fe2+0.2O2
Help on Environment: Environment: Late primary mineral in granite pegmatites, carbonatites, and found in alluvial placers. Ilmenorutile (1854) is now regarded as Nb-bearing rutile.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1854
Help on Locality: Locality: Miass, Ilmen Mountains, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the occurrence in the Ilmen Mountains and the relation to rutile.
Help on Name Pronunciation: Name Pronunciation: Ilmenorutile + Pronunciation Say ILMENORUTILE

Ilmenorutile Image

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Comments: Dark brown ilmenorutile crystal in matrix.
Location: Iveland, Aust-Agder, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ilmenorutile Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.64741
Help on Cell Dimensions: Cell Dimensions: a = 4.606, c = 2.982, Z = 2; V = 63.26 Den(Calc)= 5.00
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.23(1), 1.687(0.9), 2.48(0.8),

Physical Properties of Ilmenorutile

Help on Cleavage: Cleavage: {110} Distinct, {100} Imperfect
Help on Color: Color: Iron black, Black.
Help on Density: Density: 4.35 - 4.92, Average = 4.63
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Hardness: Hardness: 6-6.5 - Orthoclase-Pyrite
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: reddish brown

Optical Properties of Ilmenorutile

Help on Dichroism (e): Dichroism (e): brown.
Help on Dichroism (w): Dichroism (w): dark bluish green.
Help on Optical Data: Optical Data: Uniaxial (-).
  NCalc= 2.67 - from Gladstone-Dale relationship (KC = 0.3338) where Ncalc=Dcalc*KC+1
NCalc= 2.55 - from Gladstone-Dale relationship (KC = 0.3338) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Strong.
Help on RL Bireflectance: RL Bireflectance: Weak.
Help on RL Color: RL Color: Pale creamy white.

Calculated Properties of Ilmenorutile

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.70 gm/cc
note: Specific Gravity of Ilmenorutile =5.00 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEIlmenorutile = 38.88 barns/electron
U=PEIlmenorutile x rElectron Density= 182.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ilmenorutile is Not Radioactive

Ilmenorutile Classification

Help on  Dana Class: Dana Class: (04)Simple Oxides
  (04.04)with a cation charge of 4+ (A++++ O2)
  (04.04.01)Rutile group (Tetragonal: P4/mnm) Rutile TiO2 P 4/mnm 4/m 2/m 2/m Ilmenorutile (Ti,Nb,Fe)O2 P 4/mnm 4/m 2/m 2/m Struverite? (Ti,Ta,Fe)O2 P 4/mnm 4/m 2/m 2/m Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m Argutite GeO2 P 4/mnm 4/m 2/m 2/m Squawcreekite? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m Stishovite SiO2 P 4/mnm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.CB.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.C - Metal:Oxygen = 2:3, 3:5, and Similar
  04.CB -With medium-sized cations
04.CB.25 Ilmenorutile (Ti,Nb,Fe)O2 P 4/mnm 4/m 2/m 2/m
04.CB.25 Pseudorutile Fe2Ti3O9 P 322 3 2

Other Ilmenorutile Information

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

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Dana No: Strunz No: 04.CB.25





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