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Ilmenite Mineral Data

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General Ilmenite Information

Help on Chemical  Formula: Chemical Formula: Fe++TiO3
Help on Composition: Composition: Molecular Weight = 151.73 gm
   Titanium  31.56 %  Ti   52.65 % TiO2
   Iron      36.81 %  Fe   47.35 % FeO
   Oxygen    31.63 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+TiO3
Help on Environment: Environment: Common accessory mineral in igneous and metamorphic rocks. Commonly concentrated in placers as "black sand" deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1827
Help on Locality: Locality: Ilmen Mountains, southern Urals, of the Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after It's locality.
Help on Name Pronunciation: Name Pronunciation: Ilmenite Say ILMENITE
Help on Synonym: Synonym: ICSD 30664
  Leucoxene - alteration product
  Menaccanite
  PDF 29-733
  Picroilmenite - Mg-rich ilmenite
  Titanic Iron Ore
  Titanoferrite
 

Ilmenite Image

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  Ilmenite

Comments: Sharp, opaque crystal of Ilmenite.
Location: Mont St. Hilaire, Quebec, Canada. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Ilmenite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.76065
Help on Cell Dimensions: Cell Dimensions: a = 5.093, c = 14.06, Z = 6; V = 315.84 Den(Calc)= 4.79
Help on Crystal System: Crystal System: Trigonal - Rhombohedral H-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.754(1), 2.544(0.7), 1.7261(0.55),
Help on Forms: Forms:

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Drag1 - Manipulate Crystal
Drag2 - Resize

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Help on Above

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

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Physical Properties of Ilmenite

Help on Cleavage: Cleavage: None
Help on Color: Color: Iron black, Black.
Help on Density: Density: 4.72
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: Massive - Lamellar - Distinctly foliated fine-grained forms.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 5-5.5 - Apatite-Knife Blade
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Sub Metallic
Help on Magnetism: Magnetism: Naturally weak
Help on Streak: Streak: brownish black
 

Optical Properties of Ilmenite

Help on Dichroism (e): Dichroism (e): dark brown.
Help on Dichroism (w): Dichroism (w): pinkish brown.
Help on Optical Data: Optical Data: Uniaxial (-).
  NCalc= 2.42 - from Gladstone-Dale relationship (KC = 0.2959) where Ncalc=Dcalc*KC+1
NCalc= 2.4 - from Gladstone-Dale relationship (KC = 0.2959) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Strong in shades of gray.
Help on RL Bireflectance: RL Bireflectance: Strong.
Help on RL Color: RL Color: Gray, brownish tinted.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Ilmenite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   20.00   21.20 
   
 420 nm   19.50   20.80 
 440 nm   19.00   20.40 
 460 nm   18.50   20.10 
 480 nm   18.10   20.00 
 500 nm   18.00   19.80 
 520 nm   18.00   19.80 
 540 nm   18.00   19.70 
 560 nm   18.00   19.60 
 580 nm   18.00   19.80 
 600 nm   18.10   19.90 
 620 nm   18.20   19.90 
 640 nm   18.30   19.90 
 660 nm   18.40   20.00 
 680 nm   18.50   20.10 
 700 nm   18.60   20.40 
Calculated Relative Intensity Colors of Ilmenite in Air
Relative
Intensity
   0%   50% 100% 150% 200% 250% 300% 350% 400% 450% 490%
R1                      
R2                      
 

Calculated Properties of Ilmenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.55 gm/cc
note: Specific Gravity of Ilmenite =4.79 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEIlmenite = 16.55 barns/electron
U=PEIlmenite x rElectron Density= 75.25 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ilmenite is Not Radioactive
 

Ilmenite Classification

Help on  Dana Class: Dana Class: 04.03.05.01 (04)Simple Oxides
  (04.03)with a cation charge of 3+ (A+++2 O3)
  (04.03.05)Ilmenite Group
 
04.03.05.01 Ilmenite FeTiO3 R 3 3
 
04.03.05.02 Geikielite MgTiO3 R 3 3
 
04.03.05.03 Pyrophanite MnTiO3 R 3 3
 
04.03.05.04 Ecandrewsite (Zn,Fe,Mn)TiO3 R 3 3
 
04.03.05.05 Melanostibite Mn(Sb,Fe)O3 R 3 3
 
04.03.05.06 Brizziite-III NaSbO3 R 3 3
 
04.03.05.07 Akimotoite! (Mg,Fe)SiO3 R 3 3
Help on  Strunz Class: Strunz Class: 04.CB.05 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.05 Auroantimonate* AuSbO3 Ortho ? Ortho
 
04.CB.05 Geikielite MgTiO3 R 3 3
 
04.CB.05 Brizziite-III NaSbO3 R 3 3
 
04.CB.05 Brizziite-VII NaSbO3 R 3 3
 
04.CB.05 Ecandrewsite (Zn,Fe,Mn)TiO3 R 3 3
 
04.CB.05 Corundum Al2O3 R 3c 3 2/m
 
04.CB.05 Eskolaite Cr2O3 R 3c 3 2/m
 
04.CB.05 Hematite Fe2O3 R 3c 3 2/m
 
04.CB.05 Karelianite V2O3 R 3c 3 2/m
 
04.CB.05 Ilmenite FeTiO3 R 3 3
 
04.CB.05 Melanostibite Mn(Sb,Fe)O3 R 3 3
 
04.CB.05 Pyrophanite MnTiO3 R 3 3
 
04.CB.05 Romanite* (Fe,U,Pb)2(Ti,Fe)O4 Trig ? Trig
 
04.CB.05 Tistarite! Ti2O3 R 3c 3 2/m
 

Other Ilmenite Information

Help on References: References: NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Ilmenite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - EUROmin Project
7 - Ecole des Mines de Paris
8 - Franklin Minerals(Dunn)
9 - Franklin Minerals(Palache)
10 - GeoScienceWorld
11 - Google Images
12 - Google Scholar
13 - Handbook of Mineralogy (MinSocAm)
14 - Handbook of Mineralogy (UofA)
15 - HyperPhysics
16 - MinDAT
17 - Mineralienatlas (Deutsch)
18 - Online Mineral Museum
19 - QUT Mineral Atlas
20 - Ruff.Info
21 - University of Colorado - Mineral Structure Data
22 - WWW-MINCRYST

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

Ilmenite

Fe++TiO3
Dana No: 04.03.05.01 Strunz No: 04.CB.05
Locality:

 

Notes:

 

 
   
 


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