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Suessite Mineral Data
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General Suessite Information
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 Chemical Formula: |
(Fe,Ni)3Si |
| Composition: |
Molecular Weight = 197.76 gm |
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Iron 63.54 % Fe |
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Silicon 14.20 % Si |
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Nickel 22.26 % Ni |
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______ |
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100.00 % |
| Empirical Formula: |
Fe0+2.25Ni0.75Si |
| Environment: |
Iron meteorites. |
| IMA Status: |
Approved IMA 1982 |
| Locality: |
North Haig ureilite meteorite. Kurama ridge, Uzbekistan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Hans E. Suess (1909-1957), U.S. Newspaper ppublisher and researcher on iron meteorites. |
| Name Pronunciation: |
Suessite  |
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Suessite Image |
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Images:
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Suessite
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 |
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Suessite Crystallography
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| Cell Dimensions: |
a = 2.841, Z = 0.5; V = 22.93 Den(Calc)= 7.16 |
| Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I m3m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.005(1), 1.16(0.3), 1.41(0.1), |
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Physical Properties of Suessite
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| Cleavage: |
None |
| Color: |
Gray white. |
| Density: |
7.08 |
| Diaphaneity: |
Opaque |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Luster: |
Metallic |
| Magnetism: |
Magnetic |
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Optical Properties of Suessite
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| Optical Data: |
Isotropic. |
| RL Color: |
Cream white. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Suessite in Air
| λ |
R |
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∑ R(λ) |
| 470 nm |
48.50 |
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| 546 nm |
51.60 |
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| 589 nm |
53.50 |
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| 650 nm |
50.00 |
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Calculated Relative Intensity Colors of Suessite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
190% |
| R |
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Calculated Properties of Suessite
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| Electron Density: |
Bulk Density (Electron Density)=6.77 gm/cc
note: Specific Gravity of Suessite =7.16 gm/cc.
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PESuessite = 29.02 barns/electron
U=PESuessite x rElectron Density= 196.47 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Suessite is Not Radioactive |
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Suessite Classification
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| Dana Class: |
01.01.23.01 (01)Native Elements |
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(01.01)with metallic elements other than the platinum group |
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(01.01.23)Suessite Group silicides |
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01.01.23.01 Suessite (Fe,Ni)3Si I m3m 4/m 3 2/m |
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01.01.23.02 Gupeiite Fe3Si F m3m 4/m 3 2/m |
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01.01.23.03 Xifengite Fe5Si3 P 63/mcm 6/m 2/m 2/m |
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01.01.23.04 Hapkeite! Fe2Si P m3m 4/m 3 2/m |
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01.01.23.05 Luobusaite! Fe0.83Si2 C mca 2/m 2/m 2/m |
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01.01.23.06 Mavlyanovite! Mn5Si3 P 63/mcm 6/m 2/m 2/m |
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01.01.23.07 Brownleeite! MnSi P 213 2 3 |
| Strunz Class: |
01.BB.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
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01.B - Metallic Carbides, Silicides, Nitrides and Phosphides |
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01.BB -Silicides |
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01.BB.05 Suessite (Fe,Ni)3Si I m3m 4/m 3 2/m |
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01.BB.05 Mavlyanovite! Mn5Si3 P 63/mcm 6/m 2/m 2/m |
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Other Suessite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) |
| 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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Print or Cut-and-Paste your Suessite Specimen Label here :
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Suessite
(Fe,Ni)3Si
Dana No: 01.01.23.01 Strunz No: 01.BB.05
Locality:
Notes:
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