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Ferhodsite

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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).
Possibly a distorted pentlandite derivative.


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Classification of FerhodsiteHide

Approved
Approval Year:
2009
First Published:
2016

Physical Properties of FerhodsiteHide

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 FerhodsiteHide

Type:
Anisotropic
Anisotropism:
Weak to moderate
Bireflectance:
Very weak
Reflectivity:
470nmR1=35.6%R2= 33.0%
546nmR1=36.0%R2= 33.8%
589nmR1=36.2%R2= 34.0%
650nmR1=37.1%R2= 34.8%

Reflectance graph
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

Chemical Properties of FerhodsiteHide

Formula:
(Fe,Rh,Ni,Ir,Cu,Pt)9S8

Crystallography of FerhodsiteHide

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 DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.72 (50)
3.01 (70)
2.81 (30)
2.23 (100)
1.933 (60)
1.772 (40)
1.367 (3)
1.167 (4)

Type Occurrence of FerhodsiteHide

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 FerhodsiteHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for FerhodsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Williams, P. A., F. Hatert, M. Pasero and S. Mills (2009), New Minerals Approved in 2009, Nomenclature Modifications Approved in 2009 by the Commission on New Minerals, Nomenclature and Classification, IMA. IMA-CNMNC website.
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 (in Russian with English abstract).

Internet Links for FerhodsiteHide

Localities for FerhodsiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Far-Eastern Region
    • Khabarovskiy Kray
      • Ayan-Maya district
        • Aldan shield
Williams, P. et al. (2009) IMA release
Mineral and/or Locality  
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