Ferhodsite
A valid IMA mineral species
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Formula:
(Fe,Rh,Ni,Ir,Cu,Pt)9S8
Colour:
light brownish-gray, grayish-creamy with a brownish tint
Lustre:
Metallic
Specific Gravity:
7.186 (Calculated)
Crystal System:
Tetragonal
Name:
For the main chemical components (Fe, Rh, S).
Unique Identifiers
Mindat ID:
43321
Long-form identifier:
mindat:1:1:43321:3
GUID
(UUID V4):
(UUID V4):
eb838dd7-1e7b-4d3d-9e48-27a2e5aa555f
IMA Classification of Ferhodsite
Approved
IMA Formula:
(Fe,Rh,Ni,Ir,Cu,Co,Pt)9-xS8
Approval year:
2009
First published:
2016
Classification of Ferhodsite
2.BB.15
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
B : With Ni
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Frh | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Frh | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Ferhodsite
Metallic
Transparency:
Opaque
Colour:
light brownish-gray, grayish-creamy with a brownish tint
Streak:
Black
Hardness:
VHN20=516(15) kg/mm2 - Vickers
Density:
7.186 g/cm3 (Calculated)
Optical Data of Ferhodsite
Anisotropism:
Weak to moderate
Bireflectance:
Very weak
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 470nm | 35.6% | 33.0% |
| 546nm | 36.0% | 33.8% |
| 589nm | 36.2% | 34.0% |
| 650nm | 37.1% | 34.8% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 37.1%.
R1 shown in black, R2 shown in red
Colour in reflected light:
brownish gray
Internal Reflections:
None observed
Pleochroism:
Not Visible
Chemistry of Ferhodsite
Mindat Formula:
(Fe,Rh,Ni,Ir,Cu,Pt)9S8
Crystallography of Ferhodsite
Crystal System:
Tetragonal
Cell Parameters:
a = 10.009(5) Å, c = 9.840(8) Å
Ratio:
a:c = 1 : 0.983
Unit Cell V:
985.78 ų
Z:
4
Comment:
primitive cell
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.72 Å | (50) |
| 3.01 Å | (70) |
| 2.81 Å | (30) |
| 2.23 Å | (100) |
| 1.933 Å | (60) |
| 1.772 Å | (40) |
| 1.367 Å | (3) |
| 1.167 Å | (4) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 7 : Ultramafic igneous rocks | |
| Near-surface Processes | |
| 26 : Hadean detrital minerals | |
| High-𝑇 alteration and/or metamorphism | |
| 33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Ferhodsite
General Appearance of Type Material:
Isometric or platy, triangular, and corroded grains located along periphery of isoferroplatinum grains. Commonly, the new mineral is mantled and corroded by chengdeite.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia.
Associated Minerals at Type Locality:
Reference:
Begizov, V.D. and Zavjalov, E.N. (2016) Ferhodsite (Fe,Rh,Ir,Ni,Cu,Co,Pt)9–xS8 — new mineral from Nizhny Tagil ultramafic complex. Novye Dannye o Mineralakh (New Data on Minerals): 51: 8–11.
Synonyms of Ferhodsite
Related Minerals - Strunz-mindat Grouping
| 2.BB. | Horomanite | Fe6Ni3S8 |
| 2.BB. | Samaniite | Cu2Fe5Ni2S8 |
| 2.BB. | UM2007-27-S:CuFeIrNiRh | (Ni,Fe,Cu,Rh,Ir)11S9 |
| 2.BB. | Arsenotučekite | Ni18Sb3AsS16 |
| 2.BB. | Hrabákite | Ni9PbSbS8 |
| 2.BB.05 | Heazlewoodite | Ni3S2 |
| 2.BB.05 | Oregonite | Ni2FeAs2 |
| 2.BB.05 | Vozhminite | (Ni,Co)4(As,Sb)S2 |
| 2.BB.05 | UM2007-30-S:Fe | Fe3S2 |
| 2.BB.10 | Arsenohauchecornite | Ni18Bi3AsS16 |
| 2.BB.10 | Bismutohauchecornite | Ni9Bi2S8 |
| 2.BB.10 | Hauchecornite | Ni9BiSbS8 |
| 2.BB.10 | Tellurohauchecornite | Ni9Bi(Te,Bi)S8 |
| 2.BB.10 | Tučekite | Ni9Sb2S8 |
| 2.BB.15 | Argentopentlandite | Ag(Fe,Ni)8S8 |
| 2.BB.15 | Cobaltpentlandite | Co9S8 |
| 2.BB.15 | Geffroyite | (Cu,Fe,Ag)9(Se,S)8 |
| 2.BB.15 | Godlevskite | (Ni,Fe)9S8 |
| 2.BB.15 | Kharaelakhite | (Cu,Pt,Pb,Fe,Ni)9S8 |
| 2.BB.15 | Manganoshadlunite | (Mn,Pb,Cd)(Cu,Fe)8S8 |
| 2.BB.15 | Pentlandite | (NixFey)Σ9S8 |
| 2.BB.15 | Shadlunite | (Pb,Cd)(Fe,Cu)8S8 |
| 2.BB.15 | Sugakiite | Cu(Fe,Ni)8S8 |
| 2.BB.15 | UM2002-26-S:FeNi | (Ni,Fe)9S8 |
| 2.BB.15 | Oberthürite | Rh3Ni32S32 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Ferhodsite
mindat.org URL:
https://www.mindat.org/min-43321.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Ferhodsite
Reference List:
Localities for Ferhodsite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Japan | |
| NISHIO–HAMANE et al. (2019) |
Russia (TL) | |
| Williams (2009) |
| - (n.d.) +1 other reference |
| Stepanov et al. (2019) |
