Anatase Mineral Data

Anatase Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[Newest Minerals] [Minerals for Sale] [Educational Articles] [About Us] [Image Gallery]
John Betts - Fine Minerals
Classic minerals, out-of-print books & magazines, plus informative articles for collectors


General Anatase Information

Help on Chemical Formula: Chemical Formula: TiO2
Help on Composition: Composition: Molecular Weight = 79.88 gm
   Titanium  59.94 %  Ti  100.00 % TiO2
   Oxygen    40.06 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: TiO2
Help on Environment: Environment: Usually secondary, derived from other Ti-bearing minerals. Common as a detrital mineral.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1801
Help on Locality: Locality: St. Christophe, Bourg-d'Oisans, Isère, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, anatasis - "elongation."
Help on Name Pronunciation: Name Pronunciation: Anatase Say ANATASE
Help on Synonym: Synonym: ICSD 9852
  Octahedrite
  PDF 21-1272
 

Anatase Image

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

Anatase

Comments: anatase with calcite.
Location: Hardangervidda, Norway, (1999). Scale: 1.5 x 3 cm.
© Fabre Minerals

Anatase Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.50725
Help on Cell Dimensions: Cell Dimensions: a = 3.793, c = 9.51, Z = 4; V = 136.82 Den(Calc)= 3.88
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.51(1), 1.891(0.33), 2.379(0.22),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 1 1 1)

Warning: this large pop-up is very compute intensive and may not work well with some computers.
Click Here for Large Anatase Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Horn M , Schwerdtfeger C F , Meagher E P , Zeitschrift fur Kristallographie , 136 (1972) p.273-281, Refinement of the structure of anatase at several temperatures, Sample: T = 25 C, Locality: Legenbach quarry, Binnatal, Switzerland

View Additional jPOWD Structure files for Anatase
[1] [2] [3] [4]
 

Physical Properties of Anatase

Help on Cleavage: Cleavage: {101} Perfect, {001} Distinct
Help on Color: Color: Black, Reddish brown, Yellowish brown, Dark blue, Gray.
Help on Density: Density: 3.9
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Pyramidal - Crystals are shaped like pyramids.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Adamantine - Resinous
Help on Streak: Streak: pale yellowish white
 

Optical Properties of Anatase

Help on Dichroism (e): Dichroism (e): slate blue.
Help on Dichroism (w): Dichroism (w): slate blue.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.005 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3929,KPDmeas= 0.3909,KC= 0.393
Ncalc = 2.52 - 2.53
Help on Optical Data: Optical Data: Uniaxial (-), e=2.488, w=2.561, bire=0.0730.
Help on RL Pleochroism: RL Pleochroism: Weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Anatase in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   23.70   23.80 
   
 420 nm   22.40   22.50 
 440 nm   21.70   21.60 
 460 nm   21.10   21.00 
 480 nm   20.70   20.40 
 500 nm   20.20   20.00 
 520 nm   19.90   19.60 
 540 nm   19.60   19.30 
 560 nm   19.40   19.00 
 580 nm   19.20   18.80 
 600 nm   19.00   18.50 
 620 nm   18.80   18.40 
 640 nm   18.70   18.20 
 660 nm   18.60   18.10 
 680 nm   18.50   18.00 
 700 nm   18.40   17.80 
Calculated Relative Intensity Colors of Anatase in Air
Relative
Intensity		    0%   50% 100% 150% 200% 250% 300% 350% 400% 450% 470%
R1                      
R2                      
 

Calculated Properties of Anatase

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.69 gm/cc
note: Specific Gravity of Anatase =3.88 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PEAnatase = 10.03 barns/electron
U=PEAnatase x rElectron Density= 37.04 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Anatase is Not Radioactive
 

Anatase Classification
Help on Dana Class: Dana Class: 04.04.04.01 (04)Simple Oxides
  (04.04)with a cation charge of 4+ (A++++ O2)
  (04.04.04)Dana Group
 
04.04.04.01 Anatase TiO2 I 41/amd 4/m 2/m 2/m
Help on Strunz Class: Strunz Class: 04.DD.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DD -With medium-sized cations; frameworks of edge-sharing octahedra
 
04.DD.05 Anatase TiO2 I 41/amd 4/m 2/m 2/m
 

Other Anatase Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Anatase :
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 - Glendale Community College
10 - Google Images
11 - Google Scholar
12 - Handbook of Mineralogy (MinSocAm)
13 - Handbook of Mineralogy (UofA)
14 - HyperPhysics
15 - MinDAT
16 - MinMax(Deutsch)
17 - MinMax(English)
18 - Mineralienatlas (Deutsch)
19 - Philatelic Mineralogy
20 - QUT Mineral Atlas
21 - Ruff.Info
22 - University of Colorado - Mineral Structure Data
23 - WWW-MINCRYST
24 - YupRocks

Search for Anatase using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Anatase :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Anatase Mineral Data :

Ask about Anatase here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Anatase

TiO2
Dana No: 04.04.04.01 Strunz No: 04.DD.05
Locality:

 

Notes: