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โ‡ฑ Polyxene: Mineral information, data and localities.

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Polyxene

A variety of Native Platinum
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About PolyxeneHide

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Formula:
(Pt,Fe,Cu,Ni,Pd,Rh)
Colour:
metallic-grey
Lustre:
Metallic
Hardness:
4 - 4ยฝ
Specific Gravity:
15 - 19
Name:
From the Greek ฯ€ฮฟฮปฯฯ‚ - many, and ฮพฮญฮฝฮฟฮน - strangers, in allusion to complex composition of the mineral containing a lot of PGE and other metals besides of platinum.
Disordered Fe-Pt alloys with a primitive cubic unit cell. It may to contain Fe in the range 10-50 at.%. Ferroan platinum differs from Isoferroplatinum and Tetraferroplatinum by the symmetry of its unit cell.
Described by Hausman in 1813 from Colombia.


Unique IdentifiersHide

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Mindat ID:
6057 (as Polyxene)
3236 (as Native Platinum)
Long-form identifier:
mindat:1:1:6057:4 (as Polyxene)
mindat:1:1:3236:6 (as Native Platinum)

Physical Properties of PolyxeneHide

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Metallic
Transparency:
Opaque
Colour:
Metallic-grey
Streak:
Silvery
Hardness:
4 - 4ยฝ on Mohs scale
Fracture:
Irregular/Uneven, Hackly
Density:
15 - 19 g/cm3 (Measured)    

Chemistry of PolyxeneHide

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Mindat Formula:
(Pt,Fe,Cu,Ni,Pd,Rh)
Element Weights:
Element% weight
Pt100.000 %

Calculated from ideal end-member formula.

Geological EnvironmentHide

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Geological Setting:
Pt and Pt-Au placers

Synonyms of PolyxeneHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:
5 photos of Polyxene associated with Rhodarsenide(Rh,Pd)2As
4 photos of Polyxene associated with LauriteRuS2
4 photos of Polyxene associated with SperrylitePtAs2
3 photos of Polyxene associated with IsoferroplatinumPt3Fe
3 photos of Polyxene associated with Hollingworthite(Rh,Pt,Pd)AsS
2 photos of Polyxene associated with Native GoldAu
2 photos of Polyxene associated with MagnesiochromiteMgCr2O4
2 photos of Polyxene associated with Hollingworthite-Irarsite Series
1 photo of Polyxene associated with Antimony-bearing Tulameenite(Pt,Sb)2CuFe
1 photo of Polyxene associated with TulameenitePt2CuFe

Other InformationHide

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Magnetism:
Ferromagnetic
Notes:
Strong magnetic to distinctly magnetic
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:
important source of platinum and other PGE

Internet Links for PolyxeneHide

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mindat.org URL:
https://www.mindat.org/min-6057.html
Please feel free to link to this page.

References for PolyxeneHide

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Reference List:

Localities for PolyxeneHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the ๐Ÿ‘ Image
symbol to view information about a locality. The ๐Ÿ‘ Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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๐Ÿ‘ Image
- This locality has map coordinates listed. ๐Ÿ‘ Image
- This locality has estimated coordinates. โ“˜ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. ๐Ÿ‘ Image
- Good crystals or important locality for species. ๐Ÿ‘ Image
- 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Canada
  • British Columbia
    • Similkameen Mining Division
      • Tulameen River
Alfredo Petrov
Ethiopia
  • Oromia Region
    • West Welega Zone
      • Gimbi
        • Yubdo District (Joubdo District; Youbdo District; Joubda District)
Pavel M. Kartashov analytical data (2014)
Russia
  • Amur Oblast
Melโ€™nikov et al. (2012, January)
  • Bashkortostan
    • Uchalinsky District
Pavel M. Kartashov analytical data 2018
  • Sakha
    • Aldan
      • Inagli Massif
Pavel M. Kartashov analytical data (2012)
  • Sverdlovsk Oblast
    • Ivdelsky Urban Okrug
      • Ivdel
Pavel M. Kartashov analytical data of ...
    • Nizhnii Tagil
Pavel M. Kartashov analytical data 2018
USA
  • Alaska
    • Bethel Census Area
Pavel M. Kartashov analytical data 2019
Quick NavTopAbout PolyxeneUnique IdentifiersPhysical Properties Chemistry Geological EnvironmentSynonymsCommon AssociatesOther InformationInternet Links References Localities Locality List
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833โ€“844. doi:10.2138/am-2024-9486.
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