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![Mineralogy Database Mineralogy Database](/images/Hedyphane_Crystal.gif) |
Ferrorhodsite Mineral Data
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General Ferrorhodsite Information
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Chemical Formula: |
(Fe,Cu)(Rh,Ir,Pt)2S4 |
Composition: |
Molecular Weight = 417.75 gm |
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Iron 7.62 % Fe |
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Copper 6.39 % Cu |
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Iridium 10.58 % Ir |
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Platinum 2.33 % Pt |
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Rhodium 42.37 % Rh |
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Sulfur 30.70 % S |
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______ |
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100.00 % |
Empirical Formula: |
Fe2+0.57Cu0.42Rh1.72Ir0.23Pt0.05S4 |
Environment: |
Found as inclusions in isoferroplatinum in dunnite. The iron dominant analog of cuprorodsite. |
IMA Status: |
Approved IMA 1996 |
Locality: |
Gold-platinum placers in the Chadsky and Kondersky dunite massifs, Yakutia-Saha, Russia. Link to MinDat.org Location Data. |
Name Origin: |
For it's composition and relationship to cuprorhodsite. |
Synonym: |
IMA1996-047 |
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Ferrorhodsite Image |
Images:
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Ferrorhodsite
Comments: Epoxy grain mount of ferrorhodsite grains.
Location: Yukhtochka placer, tributary of South Aldan River, Yakutia, Russia.
Scale: Scale Bar 100 µm.
© Diederik Visser |
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Ferrorhodsite Crystallography
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Cell Dimensions: |
a = 9.89, Z = 8; V = 967.36 Den(Calc)= 5.74 |
Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m |
X Ray Diffraction: |
By Intensity(I/Io): 2.99(1), 1.75(0.9), 2.471(0.8),1.93(0.7), 1.009(0.3), 1.674(0.3), |
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Physical Properties of Ferrorhodsite
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Cleavage: |
None |
Color: |
Black. |
Density: |
5.71 |
Diaphaneity: |
Opaque |
Fracture: |
Fragile - Crystals with a delicate and easily injured structure. |
Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
Habit: |
Inclusions - Generally found as inclusions in other minerals. |
Hardness: |
4.5 - Between Fluorite and Apatite |
Luster: |
Metallic |
Streak: |
black |
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Optical Properties of Ferrorhodsite
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RL Color: |
Gray. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Ferrorhodsite in Air
λ |
R |
![](../images/Reflect_scale_v.gif) |
∑ R(λ) |
450 nm |
40.90 |
![](../images/450nm.BMP) |
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480 nm |
41.50 |
![](../images/480nm.BMP) |
520 nm |
41.90 |
![](../images/520nm.BMP) |
560 nm |
41.80 |
![](../images/560nm.BMP) |
600 nm |
41.80 |
![](../images/600nm.BMP) |
640 nm |
41.80 |
![](../images/640nm.BMP) |
680 nm |
41.70 |
![](../images/680nm.BMP) |
720 nm |
41.80 |
![](../images/720nm.BMP) |
Calculated Relative Intensity Colors of Ferrorhodsite in Air
Relative Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
220% |
R |
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Calculated Properties of Ferrorhodsite
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Electron Density: |
Bulk Density (Electron Density)=5.22 gm/cc note: Specific Gravity of Ferrorhodsite =5.74 gm/cc. |
Fermion Index: |
Fermion Index = 0.01 Boson Index = 0.99 |
Photoelectric: |
PEFerrorhodsite = 275.65 barns/electron U=PEFerrorhodsite x rElectron Density=1,439.36 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ferrorhodsite is Not Radioactive |
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Ferrorhodsite Classification
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Dana Class: |
02.10.01.18 (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 Ferrorhodsite Information
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References: |
NAME( MinRec, V31, No. 2) PHYS. PROP.(MinRec, V 31, No. 2) OPTIC PROP.(AmMin, v 84, p 1685) |
See Also: |
Links to other databases for Ferrorhodsite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Print or Cut-and-Paste your Ferrorhodsite Specimen Label here :
Ferrorhodsite
(Fe,Cu)(Rh,Ir,Pt)2S4
Dana No: 02.10.01.18 Strunz No: 02.DA.05
Locality:
Notes:
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