Hematite Mineral Data + Say HEMATITE

General Hematite Information
Help on Chemical Formula: Chemical Formula: Fe2O3
Help on Composition: Composition: Molecular Weight = 159.69 gm
   Iron    69.94 %  Fe  100.00 % Fe2O3
   Oxygen  30.06 %  O
          ______        ______ 
          100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+2O3
Help on Environment: Environment: Magmatic, hydrothermal, metamorphic and sedimentary.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) Prehistoric
Help on Locality: Locality: Matto Grosso, Brazil. Mesabi iron ore range, Minnesota, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, haimatites, "bloodlike'" in allusion to vivid red color of the powder.
Help on Synonym: Synonym: ICSD 64599
  Kidney Ore
  Martite
  PDF 33-664
  Specularite
 

Hematite Image

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

Hematite

Comments: Black, platy hematite and minor white magnesite.
Location: Brumado, Bahia, Brazil. Scale: 9 x 4.5 cm.
© Fabre Minerals
Click Here for Larger Hematite Image in a New Browser Window Images:
Click Here for Larger Hematite Image

Hematite   Defernite

Comments: Specular hematite rich with crystalline grains of reddish brown defernite.
Location: Kombat Mine, Kombat, Grootfontein District, Otjozondjupa Region, Namibia. Scale: 3.9 x 2.5 cm.
© John Veevaert
Click Here for Larger Hematite Image in a New Browser Window Images:
Click Here for Larger Hematite Image

Hematite   Rutile

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

Hematite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.73009
Help on Cell Dimensions: Cell Dimensions: a = 5.0317, c = 13.737, Z = 6; V = 301.20 Den(Calc)= 5.28
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.69(1), 1.69(0.6), 2.51(0.5),
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: [ 0 0 1] [ 1 0 1]

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


Blake R L , Hessevick R E , Zoltai T , Finger L W , American Mineralogist , 51 (1966) p.123-129, Refinement of the hematite structure

View Additional jPOWD Structure files for Hematite
[1]
 

Physical Properties of Hematite

Help on Cleavage: Cleavage: None
Help on Color: Color: Reddish gray, Black, Blackish red.
Help on Density: Density: 5.3
Help on Diaphaniety: Diaphaniety: Subtranslucent to opaque
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Blocky - Crystal shape tends to be equant (e.g. feldspars).
Help on Habit: Habit: Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 6.5 - Pyrite
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Magnetic after heating
Help on Streak: Streak: reddish brown
 

Optical Properties of Hematite

Help on Dichroism (e): Dichroism (e): yellowish red.
Help on Dichroism (w): Dichroism (w): brownish red.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.225 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.23 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3873,KPDmeas= 0.3858,KC= 0.315
Help on Optical Data: Optical Data: Uniaxial (-), e=2.87-2.94, w=3.15-3.22, bire=0.2800.
Help on RL Color: RL Color: White to gray white, with a bluish tint, with deep blood-red internal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Hematite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   32.00   34.50 
   
 420 nm   31.00   34.00 
 440 nm   30.00   33.50 
 460 nm   29.10   32.70 
 480 nm   28.40   32.20 
 500 nm   27.80   31.60 
 520 nm   27.20   31.00 
 540 nm   27.00   30.60 
 560 nm   26.80   30.40 
 580 nm   26.40   30.00 
 600 nm   25.50   29.20 
 620 nm   24.80   28.30 
 640 nm   24.10   27.50 
 660 nm   23.50   26.70 
 680 nm   23.10   26.10 
 700 nm   22.80   25.60 
Calculated Relative Intensity Colors of Hematite in Air
Relative
Intensity		    0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 350%
R1                      
R2                      
 

Calculated Properties of Hematite

Help on Electron Density: Electron Density:

relectron=5.04 gm/cc
note: rHematite =5.30 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.01497
Boson Index = 0.98503
Help on Photoelectric: Photoelectric:

PEHematite = 21.37 barns/electron
U=PEHematite x relectron= 107.83 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Hematite is Not Radioactive
 

Hematite Classification
Help on Dana Class: Dana Class: 4.3.1.2 (4)Simple Oxides
  (4.3)with a cation charge of 3+ (A+++2 O3)
  (4.3.1)Corundum-Hematite group (Rhombohedral: R3¯c)
 
4.3.1.1 Corundum Al2O3 R 3c 3 2/m
 
4.3.1.2 Hematite Fe2O3 R 3c 3 2/m
 
4.3.1.3 Eskolaite Cr2O3 R 3c 3 2/m
 
4.3.1.4 Karelianite V2O3 R 3c 3 2/m
Help on Strunz Class: Strunz Class: IV/C.04-20 IV - Oxides
  IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)
  IV/C.04 - Hematite group
 
IV/C.04-10 Corundum Al2O3 R 3c 3 2/m
 
IV/C.04-20 Hematite Fe2O3 R 3c 3 2/m
 
IV/C.04-30 Eskolaite Cr2O3 R 3c 3 2/m
 
IV/C.04-40 Karelianite V2O3 R 3c 3 2/m
 

Other Hematite 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 Hematite :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 - Applied Mineralogy 6 -Athena 7 - Crocoite.com Mineral Locations 8 - EUROmin Project 9 - Franklin Minerals(Dunn) 10 - Franklin Minerals(Palache) 11 - Glendale Community College 12 -Google Images 13 -Google Scholar 14 -Handbook of Mineralogy (UofA) 15 - HyperPhysics 16 -MinDAT 17 -MinMax(Deutsch) 18 -MinMax(English) 19 - Mineral and Gemstone Kingdom 20 -Mineralienatlas (Deutsch) 21 - Minerals of Wisconsin 22 - Philatelic Mineralogy 23 - Philatelic Mineralogy 24 -QUT Mineral Atlas 25 - Scandinavian mineral gallery 26 - Tradeshop.com - The Rainbow of Gems 27 -University of Colorado - Mineral Structure Data 28 - University of Manchester - Mineral Structure 29 -University of Minnesota 30 - WWW-MINCRYST 31 - YupRocks 32 -theimage 33 -École des Mines de Paris

Search for Hematite using:

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

Visit our Advertisers for Hematite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Hematite Mineral Data :

Ask about Hematite 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 Hematite Specimen Label here :

Hematite

Fe2O3
Dana No: 4.3.1.2 Strunz No: IV/C.04-20
Locality:

 

Notes:

 
 
   
 
Go To Webmineral Home Crystallography X-Ray D-Spacing Table Chemical Composition
Dana Classification Strunz Classification Table of Mineral Properties Alphabetical Listing of Minerals
Search Webmineral Photo Gallery of Mineral Images Help Files Links