General Siegenite Information
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Chemical Formula: |
(Ni,Co)3S4 |
Composition: |
Molecular Weight = 304.52 gm |
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Cobalt 14.51 % Co |
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Nickel 43.36 % Ni |
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Sulfur 42.12 % S |
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100.00 % |
Empirical Formula: |
Ni2.25Co0.75S4 |
Environment: |
In hydrothermal veins with other Cu-Ni-Fe sulfides. |
IMA Status: |
Valid Species (Pre-IMA) 1850 |
Locality: |
Grube Jungfer, M�sen, Siegen district, Nordrhein-Westfalen, Germany. Link to MinDat.org Location Data. |
Name Origin: |
Named after its ore-bearing locality, Siegen, Germany. |
Name Pronunciation: |
Siegenite + Pronunciation |
Synonym: |
ICSD 23773 |
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PDF 24-334 |
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Siegenite Image |
Images:
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Images:
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Siegenite Crystallography
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Cell Dimensions: |
a = 9.41, Z = 8; V = 833.24 Den(Calc)= 4.85 |
Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m |
X Ray Diffraction: |
By Intensity(I/Io): 2.86(1), 1.67(0.8), 2.36(0.7), |
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Physical Properties of Siegenite
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Cleavage: |
{100} Imperfect, {010} Imperfect, {001} Imperfect |
Color: |
Violet gray, Copper red, Light gray, Steel gray. |
Density: |
4.5 - 4.8, Average = 4.65 |
Diaphaneity: |
Opaque |
Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
Hardness: |
5-5.5 - Apatite-Knife Blade |
Luster: |
Metallic |
Streak: |
grayish black |
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Optical Properties of Siegenite
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Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Siegenite in Air
λ |
R |
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∑ R(λ) |
400 nm |
44.30 |
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420 nm |
44.50 |
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440 nm |
44.70 |
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460 nm |
45.00 |
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480 nm |
45.20 |
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500 nm |
45.50 |
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520 nm |
45.80 |
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540 nm |
46.20 |
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560 nm |
46.80 |
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580 nm |
47.50 |
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600 nm |
48.20 |
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620 nm |
49.10 |
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640 nm |
50.00 |
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660 nm |
51.00 |
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680 nm |
52.10 |
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700 nm |
53.10 |
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Calculated Relative Intensity Colors of Siegenite in Air
Relative Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
200% |
R |
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Calculated Properties of Siegenite
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Electron Density: |
Bulk Density (Electron Density)=4.69 gm/cc note: Specific Gravity of Siegenite =4.85 gm/cc. |
Fermion Index: |
Fermion Index = 0.0080592482 Boson Index = 0.9919407518 |
Photoelectric: |
PESiegenite = 24.58 barns/electron U=PESiegenite x rElectron Density= 115.27 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Siegenite is Not Radioactive |
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Siegenite Classification
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Dana Class: |
02.10.01.06 (02)Sulfides - Including Selenides and Tellurides |
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(02.10)where Am Bn Xp, with (m+n):p=3:4 |
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(02.10.01)Linnaeite Group (Isometric: Fd3m) |
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02.10.01.01 Linnaeite CoCo2S4 F d3m 4/m 3 2/m |
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02.10.01.02 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m |
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02.10.01.03 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m |
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02.10.01.04 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m |
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02.10.01.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m |
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02.10.01.06 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m |
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02.10.01.07 Polydymite NiNi2S4 F d3m 4/m 3 2/m |
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02.10.01.08 Violarite FeNi2S4 F d3m 4/m 3 2/m |
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02.10.01.09 Trustedtite Ni3Se4 F d3m 4/m 3 2/m |
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02.10.01.10 Greigite FeFe2S4 F d3m 4/m 3 2/m |
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02.10.01.11 Daubreelite FeCr2S4 F d3m 4/m 3 2/m |
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02.10.01.12 Indite FeIn2S4 F d3m 4/m 3 2/m |
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02.10.01.13 Kalininite ZnCr2S4 F d3m 4/m 3 2/m |
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02.10.01.14 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m |
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02.10.01.15 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m |
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02.10.01.16 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m |
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02.10.01.17 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m |
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02.10.01.18 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m |
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02.10.01.19 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m |
Strunz Class: |
02.DA.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.D - Metal Sulfides, M:S = 3:4 and 2:3 |
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02.DA -M:S = 3:4 |
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02.DA.05 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m |
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02.DA.05 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m |
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02.DA.05 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m |
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02.DA.05 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m |
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02.DA.05 Dayingite* CuCoPtS4 F m3m 4/m 3 2/m |
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02.DA.05 Daubreelite FeCr2S4 F d3m 4/m 3 2/m |
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02.DA.05 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Greigite FeFe2S4 F d3m 4/m 3 2/m |
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02.DA.05 Indite FeIn2S4 F d3m 4/m 3 2/m |
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02.DA.05 Linnaeite CoCo2S4 F d3m 4/m 3 2/m |
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02.DA.05 Kalininite ZnCr2S4 F d3m 4/m 3 2/m |
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02.DA.05 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Polydymite NiNi2S4 F d3m 4/m 3 2/m |
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02.DA.05 Violarite FeNi2S4 F d3m 4/m 3 2/m |
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02.DA.05 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m |
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02.DA.05 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m |
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02.DA.05 Xingzhongite (Pb,Cu,Fe)(Ir,Pt,Rh)2S4 F d3m 4/m 3 2/m |
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02.DA.05 Trustedtite Ni3Se4 F d3m 4/m 3 2/m |
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02.DA.05 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m |
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Other Siegenite Information
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References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
See Also: |
Links to other databases for Siegenite :
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 Siegenite Specimen Label here :
Siegenite
(Ni,Co)3S4
Dana No: 02.10.01.06 Strunz No: 02.DA.05
Locality:
Notes:
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