Rutile Mineral Data
General Rutile Information
Chemical Formula:
TiO2
Composition:
Molecular Weight = 79.88 gm
Titanium 59.94 % Ti 100.00 % TiO2
Oxygen 40.06 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
TiO2
Environment:
High pressure and temperature accessory mineral in ignous rocks. Common detrital mineral.
IMA Status:
Valid Species (Pre-IMA) 1803
Locality:
Binnental and Campolungo, Switzerland. Link to MinDat.org Location Data.
Name Origin:
From the Latin, rutilus - "reddish."
Name Pronunciation:
Rutile
Synonym:
ICSD 62677
Ilmenorutile - Nb-bearing rutile
PDF 16-934
Sagenite - reticulated
Struverite - Ta-bearing rutile
Rutile Image
Images:
Images:
Rutile Hematite
Comments: Acicular, golden yellow crystals of rutile epitaxially overgrown on black crystals of hematite. The overgrowths are perpendicular to the trigonal crystallography of the hematite.
Location: Novo Horizonte, Bahia Brazil.
Scale: 4 x 3.5 x 3 cm.
© Fabre Minerals
Rutile Crystallography
Axial Ratios:
a:c = 1:0.64388
Cell Dimensions:
a = 4.594, c = 2.958, Z = 2; V = 62.43 Den(Calc)= 4.25
Crystal System:
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mnm
X Ray Diffraction:
By Intensity(I/Io ): 3.245(1), 1.687(0.5), 2.489(0.41),
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Physical Properties of Rutile
Cleavage:
{110} Distinct
Color:
Blood red, Bluish, Brownish yellow, Brown red, Violet.
Density:
4.25
Diaphaneity:
Transparent to translucent to opaque
Fracture:
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Habit:
Acicular - Occurs as needle-like crystals.
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
6-6.5 - Orthoclase-Pyrite
Luminescence:
Non-fluorescent.
Luster:
Adamantine
Streak:
grayish black
Optical Properties of Rutile
Dichroism (e):
red or yellow.
Dichroism (w):
brown or green.
Gladstone-Dale:
CI meas = -0.053 (Good) - where the CI = (1-KPDmeas /KC ) CI calc = -0.053 (Good) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.4137,KPDmeas = 0.4137,KC = 0.393 Ncalc = 2.67
Optical Data:
Uniaxial (+), w=2.605-2.621, e=2.899-2.908, bire=0.2870-0.2940.
RL Anisotrophism:
Strong.
RL Color:
Gray with bluish tint.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Rutile in Air
λ
R1
R 2
∑ R1 (λ)
∑ R2 (λ)
400 nm
23.70
27.00
420 nm
23.20
26.50
440 nm
22.70
26.00
460 nm
22.20
25.50
480 nm
21.70
25.10
500 nm
21.30
24.70
520 nm
20.90
24.30
540 nm
20.60
24.00
560 nm
20.20
23.60
580 nm
20.00
23.40
600 nm
19.70
23.10
620 nm
19.50
22.90
640 nm
19.20
22.80
660 nm
19.10
22.60
680 nm
19.00
22.50
700 nm
18.90
22.50
Calculated Relative Intensity Colors of Rutile in Air
Relative Intensity
0%
50%
100%
150%
200%
250%
300%
350%
400%
440%
R1
R2
Calculated Properties of Rutile
Electron Density:
Bulk Density (Electron Density)=4.04 gm/cc note: Specific Gravity of Rutile =4.25 gm/cc.
Fermion Index:
Fermion Index = 0.07 Boson Index = 0.93
Photoelectric:
PERutile = 10.03 barns/electronU=PERutile x r Electron Density= 40.58 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Rutile is Not Radioactive
Rutile Classification
Dana Class:
04.04.01.01 (04) Simple Oxides
(04.04) with a cation charge of 4+ (A++++ O2)
(04.04.01) Rutile group (Tetragonal: P4/mnm)
04.04.01.01 Rutile TiO2 P 4/mnm 4/m 2/m 2/m
04.04.01.02 Ilmenorutile (Ti,Nb,Fe)O2 P 4/mnm 4/m 2/m 2/m
04.04.01.03 Struverite ? (Ti,Ta,Fe)O2 P 4/mnm 4/m 2/m 2/m
04.04.01.04 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m
04.04.01.05 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m
04.04.01.06 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m
04.04.01.07 Argutite GeO2 P 4/mnm 4/m 2/m 2/m
04.04.01.08 Squawcreekite ? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m
04.04.01.09 Stishovite SiO2 P 4/mnm 4/m 2/m 2/m
Strunz Class:
04.DB.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
04.D - Metal:Oxygen = 1:2 and similar
04.DB -With medium-sized cations; chains of edge-sharing octahedra
04.DB.05 Argutite GeO2 P 4/mnm 4/m 2/m 2/m
04.DB.05 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m
04.DB.05 Rutile TiO2 P 4/mnm 4/m 2/m 2/m
04.DB.05 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m
04.DB.05 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m
04.DB.05 Varlamoffite * (Sn,Fe)(O,OH)2 P 41 /mnm 4/m 2/m 2/m
04.DB.05 Squawcreekite ? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m
04.DB.05 Tugarinovite MoO2 P 21 /n 2/m
04.DB.05 Tripuhyite FeSbO4 P 41 /mnm 4/m 2/m 2/m
Other Rutile Information
References:
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
See Also:
Links to other databases for Rutile :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - CalTech Mineral Spectroscopy
7 - EUROmin Project
8 - Ecole des Mines de Paris
9 - Franklin Minerals(Dunn)
10 - Franklin Minerals(Palache)
11 - GeoScienceWorld
12 - Glendale Community College
13 - Google Images
14 - Google Scholar
15 - Handbook of Mineralogy (MinSocAm)
16 - Handbook of Mineralogy (UofA)
17 - HyperPhysics
18 - MinDAT
19 - Mineralienatlas (Deutsch)
20 - Online Mineral Museum
21 - Philatelic Mineralogy
22 - QUT Mineral Atlas
23 - Ruff.Info
24 - Scandinavian mineral gallery
25 - Tradeshop.com - The Rainbow of Gems
26 - UCLA - Petrography Thin-Sections
27 - University of Colorado - Mineral Structure Data
28 - University of Colorado - Mineral Structure Data
29 - WWW-MINCRYST
30 - YupRocks
31 - theimage
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Print or Cut-and-Paste your Rutile Specimen Label here :
Rutile
TiO2
Dana No: 04.04.01.01 Strunz No: 04.DB.05
Locality:
Notes:
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