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Chrisstanleyite

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Chris Stanley - 1994
Formula:
Ag2Pd3Se4
Colour:
Silvery grey
Lustre:
Metallic
Hardness:
5
Specific Gravity:
8.30 (Calculated)
Crystal System:
Monoclinic
Name:
Named by W.H. Paar, A.C. Roberts, A.J. Criddle, and D. Topa in 1998 in honor of Chris J. Stanley (1954, Nottingham, UK - ), mineralogist with the Natural History Museum (London), in recognition of his contributions to ore mineralogy.
Silver analogue of jagüéite.


Classification of Chrisstanleyite

Approved
First Published:
1998
2.BC.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)
C : With Rh, Pd, Pt, etc.

Physical Properties of Chrisstanleyite

Metallic
Transparency:
Opaque
Colour:
Silvery grey
Streak:
Black
Hardness:
Hardness:
VHN100=395 kg/mm2 - Vickers
Tenacity:
Brittle
Density:
8.30 g/cm3 (Calculated)

Optical Data of Chrisstanleyite

Type:
Anisotropic
Anisotropism:
Moderate; rose-brown, gray-green, pale bluish gray, dark steel-blue
Bireflectance:
Weak to moderate
Pleochroism:
Weak
Comments:
Pale buff to slightly gray-green buff

Chemical Properties of Chrisstanleyite

Formula:
Ag2Pd3Se4

Crystallography of Chrisstanleyite

Crystal System:
Monoclinic
Cell Parameters:
a = 6.350(6) Å, b = 10.387(4) Å, c = 5.683(3) Å
β = 114.90(5)°
Ratio:
a:b:c = 0.611 : 1 : 0.547
Unit Cell V:
339.99 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Anhedral crystals to several hundred microns.
Twinning:
Fine polysynthetic and parquetlike

Type Occurrence of Chrisstanleyite

Place of Conservation of Type Material:
Holotype: Institut für Mineralogie, University, Salzburg, Austria (catalogue number ll/A 1070).

Cotype samples (four polished sections: E.1534; E.1527; E.1538 and E.1537) are registered as BM 1997,59 at The Natural History Museum in London.
Geological Setting of Type Material:
In gold bearing veins
Associated Minerals at Type Locality:

Synonyms of Chrisstanleyite

Other Language Names for Chrisstanleyite

Simplified Chinese:硒钯银矿
Traditional Chinese:硒鈀銀礦

Common Associates

Associated Minerals Based on Photo Data:
Fischesserite1 photo of Chrisstanleyite associated with Fischesserite on mindat.org.
Tischendorfite1 photo of Chrisstanleyite associated with Tischendorfite on mindat.org.
Ankerite1 photo of Chrisstanleyite associated with Ankerite on mindat.org.
Clausthalite1 photo of Chrisstanleyite associated with Clausthalite on mindat.org.
Tiemannite1 photo of Chrisstanleyite associated with Tiemannite on mindat.org.
Stibiopalladinite1 photo of Chrisstanleyite associated with Stibiopalladinite on mindat.org.

Related Minerals - Nickel-Strunz Grouping

2.BC.UM2004-45-Se:AgHgPd(Ag,Cu)6Hg2Pd2Se3
2.BC.ColdwellitePd3Ag2S
2.BC.05PalladseitePd17Se15
2.BC.05MiassiteRh17S15
2.BC.05UM2000-47-S:CuFePdPt(Cu,Fe,Pd,Pt,Rh)9S8
2.BC.10Oosterboschite(Pd,Cu)7Se5
2.BC.15JagüéiteCu2Pd3Se4
2.BC.20KeithconnitePd20Te7
2.BC.25Vasilite(Pd,Cu)16(S,Te)7
2.BC.30TelluropalladinitePd9Te4
2.BC.35LuberoitePt5Se4
2.BC.40Oulankaite(Pd,Pt)5(Cu,Fe)4SnTe2S2
2.BC.45Telargpalite(Pd,Ag)3(Te,Bi)
2.BC.50TemagamitePd3HgTe3
2.BC.55SopcheiteAg4Pd3Te4
2.BC.60LaflammeitePd3Pb2S2
2.BC.65TischendorfitePd8Hg3Se9

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.

References for Chrisstanleyite

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Paar, W.H., Roberts, A.C., Criddle, A.J., Topa, D. (1998) A new mineral, chrisstanleyite, Ag2Pd3Se4, from Hope's Nose, Torquay, Devon, England. Mineralogical Magazine: 62: 257-264.
Jambor, J.L., Grew, E.S., Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 1347-1352.
Topa, D., Makovicky, E., Balić-Žunić, T. (2006) The crystal structures of jaguéite, Cu2Pd3Se4, and chrisstanleyite, Ag2Pd3Se4. The Canadian Mineralogist: 44: 497-505.
Locock, A.J., Ercit, T.S., Kjellman, J., Piilonen, C. (2006) New mineral names. American Mineralogist: 91: 1945-1954.
Vymazalová, A., Chareev, D.A., Kristavchuk, A.V., Laufek, F., Drábek, M. (2014) The Ag-Pd-Se System: phase relations involving minerals and potential new minerals. The Canadian Mineralogist: 52: 77-89.

Internet Links for Chrisstanleyite

mindat.org URL:
https://www.mindat.org/min-1028.html
Please feel free to link to this page.

Localities for Chrisstanleyite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Argentina
 
  • La Rioja
    • General Lamadrid department
      • Los Llantenes district
Canadian Mineralogist Vol. 42, 1745-1755 (2004).
Australia
 
  • Western Australia
    • East Pilbara Shire
      • Rudall River District
Nickel, Ernest H. (2002): An Unusual Occurrence of Pd, Pt, Au, Ag, and Hg Mineralisation in the Pilbara Region of Western Australia. Canadian Mineralogist. 40: 419-433.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
W. H. Paar, D. Topa, E. Makovický, F. J. Culetto: "Milotaite, PdSbSe, a new palladium mineral, from Předbořice, Czech Republic", The Canadian Mineralogist 43, 689-694 (2005)
Germany
 
  • Saxony-Anhalt
    • Harz
      • Tilkerode (Abberode)
Lapis 2002(11), 42-43; Stanley, C. J., Criddle, A. J., Förster, H. J., & Roberts, A. C. (2002). Tischendorfite, Pd8Hg3Se9, a new mineral species from Tilkerode, Harz Mountains, Germany. The Canadian Mineralogist, 40(2), 739-745.
UK (TL)
 
  • England
    • Devon
      • South Devon
        • Torquay
Mineralogical Magazine(1998) 62, 257-264
Mineral and/or Locality  
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