|
![Mineralogy Database Mineralogy Database](/images/Hedyphane_Crystal.gif) |
Seinajokite Mineral Data
|
|
|
General Seinajokite Information
|
Chemical Formula: |
(Fe,Ni)(Sb,As)2 |
Composition: |
Molecular Weight = 276.64 gm |
|
Iron 15.14 % Fe |
|
Nickel 5.30 % Ni |
|
Antimony 66.01 % Sb |
|
Arsenic 13.54 % As |
|
______ |
|
100.00 % |
Empirical Formula: |
Fe2+0.75Ni0.25Sb1.5As0.5 |
Environment: |
In an antimony deposit, replacing antimony. |
IMA Status: |
Approved IMA 1976 |
Locality: |
In the Sein�joki deposit, Vaasa, Finland Link to MinDat.org Location Data. |
Name Origin: |
Named for the locality. |
Name Pronunciation: |
Seinajokite + Pronunciation |
|
Seinajokite Crystallography
|
Axial Ratios: |
a:b:c =0.549:1:1.117 |
Cell Dimensions: |
a = 3.19, b = 5.81, c = 6.49, Z = 2; V = 120.29 Den(Calc)= 7.64 |
Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnnm |
X Ray Diffraction: |
By Intensity(I/Io): 2.81(1), 2.59(0.9), 2.03(0.8), |
|
Physical Properties of Seinajokite
|
Color: |
Gray. |
Diaphaneity: |
Opaque |
Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
Hardness: |
5 - Apatite |
Luster: |
Metallic |
|
Optical Properties of Seinajokite
|
RL Anisotrophism: |
Distinct, brown to blue. |
RL Color: |
Light gray with a rose tint. |
|
Calculated Properties of Seinajokite
|
Electron Density: |
Bulk Density (Electron Density)=6.60 gm/cc note: Specific Gravity of Seinajokite =7.64 gm/cc. |
Fermion Index: |
Fermion Index = 0.003809113 Boson Index = 0.996190887 |
Photoelectric: |
PESeinajokite = 242.19 barns/electron U=PESeinajokite x rElectron Density=1,598.53 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Seinajokite is Not Radioactive |
|
Seinajokite Classification
|
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 |
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
|
References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
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 - 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
Search for Seinajokite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Seinajokite :
Ask about Seinajokite 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 Seinajokite Specimen Label here :
Seinajokite
(Fe,Ni)(Sb,As)2
Dana No: 02.12.02.10 Strunz No: 02.EB.15b
Locality:
Notes:
|
|
|
|
|
|
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.