Mineralogy Database

Suessite Mineral Data

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General Suessite Information

Help on Chemical  Formula: Chemical Formula: (Fe,Ni)3Si
Help on Composition: Composition: Molecular Weight = 197.76 gm
   Iron     63.54 %  Fe
   Silicon  14.20 %  Si
   Nickel   22.26 %  Ni
           100.00 % 
Help on Empirical Formula: Empirical Formula: Fe0+2.25Ni0.75Si
Help on Environment: Environment: Iron meteorites.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: North Haig ureilite meteorite. Kurama ridge, Uzbekistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Hans E. Suess (1909-1957), U.S. Newspaper ppublisher and researcher on iron meteorites.
Help on Name Pronunciation: Name Pronunciation: Suessite Say SUESSITE

Suessite Image

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Comments: B&W image of suessite (white) as vein fillings and blebs. Silicates (olivine, pigeonite) are gray; carbonaceous matrix is black. Hydrous ferric oxide veins are (light gray).
Location: North Haig olivine pigeonite achondrite (ureilite). (AmMin, v67:126). Scale: Scale Bar 100 µm.
© American Mineralogist

Suessite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 2.841, Z = 0.5; V = 22.93 Den(Calc)= 7.16
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.005(1), 1.16(0.3), 1.41(0.1),

Physical Properties of Suessite

Help on Cleavage: Cleavage: None
Help on Color: Color: Gray white.
Help on Density: Density: 7.08
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Magnetic

Optical Properties of Suessite

Help on Optical Data: Optical Data: Isotropic.
Help on RL Color: RL Color: Cream white.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Suessite in Air
λ R  ∑ R(λ) 
 470 nm   48.50   
 546 nm   51.60 
 589 nm   53.50 
 650 nm   50.00 
Calculated Relative Intensity Colors of Suessite in Air
   0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190%

Calculated Properties of Suessite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.77 gm/cc
note: Specific Gravity of Suessite =7.16 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PESuessite = 29.02 barns/electron
U=PESuessite x rElectron Density= 196.47 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Suessite is Not Radioactive

Suessite Classification

Help on  Dana Class: Dana Class: (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.23)Suessite Group silicides Suessite (Fe,Ni)3Si I m3m 4/m 3 2/m Gupeiite Fe3Si F m3m 4/m 3 2/m Xifengite Fe5Si3 P 63/mcm 6/m 2/m 2/m Hapkeite! Fe2Si P m3m 4/m 3 2/m Luobusaite! Fe0.83Si2 C mca 2/m 2/m 2/m Mavlyanovite! Mn5Si3 P 63/mcm 6/m 2/m 2/m Brownleeite! MnSi P 213 2 3
Help on  Strunz Class: Strunz Class: 01.BB.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.B - Metallic Carbides, Silicides, Nitrides and Phosphides
  01.BB -Silicides
01.BB.05 Suessite (Fe,Ni)3Si I m3m 4/m 3 2/m
01.BB.05 Mavlyanovite! Mn5Si3 P 63/mcm 6/m 2/m 2/m

Other Suessite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Suessite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 01.BB.05





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