Seinajokite Mineral Data

Seinajokite Mineral Data
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General Seinajokite Information

Help on Chemical Formula: Chemical Formula: (Fe,Ni)(Sb,As)2
Help on Composition: Composition: Molecular Weight = 276.64 gm
   Iron      15.14 %  Fe
   Nickel     5.30 %  Ni
   Antimony  66.01 %  Sb
   Arsenic   13.54 %  As
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Fe2+0.75Ni0.25Sb1.5As0.5
Help on Environment: Environment: In an antimony deposit, replacing antimony.
Help on IMA Status: IMA Status: Approved IMA 1976
Help on Locality: Locality: In the Seinäjoki deposit, Vaasa, Finland Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Seinajokite + Pronunciation Say SEINAJOKITE
 

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Seinajokite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.549:1:1.117
Help on Cell Dimensions: Cell Dimensions: a = 3.19, b = 5.81, c = 6.49, Z = 2; V = 120.29 Den(Calc)= 7.64
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.81(1), 2.59(0.9), 2.03(0.8),
Click Here for Large Seinajokite Structure Window Crystal Structure:

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Kjekshus A , Peterzens P G , Rakke T , Andresen A F , Acta Chemica Scandinavica , A33 (1979) p.469-480, Compounds with the marcasite type crystal structure. XIII. Structural and, magnetic properties of CrtFe1-tAs2, CrtFe1-tSb2, Fe1-tNitAs2 and Fe1-tNitSb2, Locality: synthetic, Sample: Fe.5Ni.5Sb2

 

Physical Properties of Seinajokite

Help on Color: Color: Gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Metallic
 

Optical Properties of Seinajokite

Help on RL Anisotrophism: RL Anisotrophism: Distinct, brown to blue.
Help on RL Color: RL Color: Light gray with a rose tint.
 

Calculated Properties of Seinajokite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.60 gm/cc
note: Specific Gravity of Seinajokite =7.64 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.003809113
Boson Index = 0.996190887
Help on Photoelectric: Photoelectric: PESeinajokite = 242.19 barns/electron
U=PESeinajokite x rElectron Density=1,598.53 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Seinajokite is Not Radioactive
 

Seinajokite Classification
Help on Dana Class: Dana Class: 02.12.02.10 (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.02)Marcasite Group (Orthorhombic: Pnnm)
 
02.12.02.01 Marcasite FeS2 Pnnm 2/m 2/m 2/m
 
02.12.02.02 Ferroselite FeSe2 Pnnm 2/m 2/m 2/m
 
02.12.02.03 Frohbergite FeTe2 Pnnm 2/m 2/m 2/m
 
02.12.02.04 Hastite? CoSe2 Pnnm 2/m 2/m 2/m
 
02.12.02.05 Mattagamite CoTe2 Pnnm 2/m 2/m 2/m
 
02.12.02.06 Kullerudite NiSe2 Pnnm 2/m 2/m 2/m
 
02.12.02.07 Omeiite (Os,Ru)As2 Pnnm 2/m 2/m 2/m
 
02.12.02.08 Anduoite (Ru,Os)As2 Pnnm 2/m 2/m 2/m
 
02.12.02.09 Lollingite FeAs2 Pnnm 2/m 2/m 2/m
 
02.12.02.10 Seinajokite (Fe,Ni)(Sb,As)2 Pnnm 2/m 2/m 2/m
 
02.12.02.11 Safflorite (Co,Fe)As2 Pnnm 2/m 2/m 2/m
 
02.12.02.12 Rammelsbergite NiAs2 Pnnm 2/m 2/m 2/m
 
02.12.02.13 Nisbite NiSb2 Pnnm 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 02.EB.15b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.E - Metal Sulfides, M:S £ 1:2
  02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.
 
02.EB.15b Seinajokite (Fe,Ni)(Sb,As)2 Pnnm 2/m 2/m 2/m
 

Other Seinajokite 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 Seinajokite :
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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Seinajokite

(Fe,Ni)(Sb,As)2
Dana No: 02.12.02.10 Strunz No: 02.EB.15b
Locality:

 

Notes: