Heideite Mineral Data

Heideite Mineral Data
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General Heideite Information

Help on Chemical Formula: Chemical Formula: (Fe,Cr)1+x(Ti,Fe)2S4
Help on Composition: Composition: Molecular Weight = 292.66 gm
   Titanium  27.81 %  Ti
   Chromium   3.55 %  Cr
   Iron      24.81 %  Fe
   Sulfur    43.83 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Fe2+Cr0.2Ti1.7Fe2+0.3S4
Help on Environment: Environment: In meteorites recovered on Earth.
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: Bustee enstatite achondrite meteor. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Fritz Heide (1891-1973), meteoriticist of Jana, Germany.
Help on Name Pronunciation: Name Pronunciation: Heideite Say HEIDEITE
Help on Synonym: Synonym: ICSD 42563
  PDF 20-1303
 

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Heideite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.7456:1:3.3333
Help on Cell Dimensions: Cell Dimensions: a = 5.97, b = 3.42, c = 11.4, Z = 2; beta = 90.2° V = 232.76 Den(Calc)= 4.18
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: I2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.06(1), 1.72(0.75), 2.64(0.75),
Click Here for Large Heideite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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I - Data Info
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Takahashi T , Yamada O , Journal of Solid State Chemistry , 7 (1973) p.25-30, Crystallographic and magnetic properties of the Cd(OH)2, layer structure compound TiS2 containing extra iron, Locality: synthetic

 

Physical Properties of Heideite

Help on Cleavage: Cleavage: None
Help on Color: Color: Steel gray.
Help on Density: Density: 4.1
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 3.5-4.5 - Between Copper Penny and Fluorite-Apatite
Help on Luster: Luster: Metallic
 

Optical Properties of Heideite

Help on RL Color: RL Color: Creamy white.
Help on RL Pleochroism: RL Pleochroism: Moderately strong, from purple-gray to cream-gray.
 

Calculated Properties of Heideite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.00 gm/cc
note: Specific Gravity of Heideite =4.18 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEHeideite = 15.30 barns/electron
U=PEHeideite x rElectron Density= 61.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Heideite is Not Radioactive
 

Heideite Classification
Help on Dana Class: Dana Class: 02.10.02.03 (02)Sulfides - Including Selenides and Tellurides
  (02.10)where Am Bn Xp, with (m+n):p=3:4
  (02.10.02)Wilkmanite Group
 
02.10.02.01 Wilkmanite Ni3Se4 I2/m 2/m
 
02.10.02.02 Brezinaite Cr3S4 I2/m 2/m
 
02.10.02.03 Heideite (Fe,Cr)1x(Ti,Fe)2S4 I2/m 2/m
 
02.10.02.04 Kingstonite! (Rh,Ir,Pt)3S4 C 2/m 2/m
Help on Strunz Class: Strunz Class: 02.DA.15 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.D - Metal Sulfides, M:S = 3:4 and 2:3
  02.DA -M:S = 3:4
 
02.DA.15 Brezinaite Cr3S4 I2/m 2/m
 
02.DA.15 Heideite (Fe,Cr)1x(Ti,Fe)2S4 I2/m 2/m
 
02.DA.15 Wilkmanite Ni3Se4 I2/m 2/m
 

Other Heideite Information
Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Heideite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Heideite

(Fe,Cr)1+x(Ti,Fe)2S4
Dana No: 02.10.02.03 Strunz No: 02.DA.15
Locality:

 

Notes: