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Coldwellite

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About ColdwelliteHide

Formula:
Pd3Ag2S
Colour:
White with a light pinkish brown tint
Lustre:
Metallic
Specific Gravity:
9.90 (Calculated)
Crystal System:
Isometric
Name:
For the type locality.
Known synthetic analogue. Currently the only known approved mineral with Pd-Ag-S combination. See also 'Unnamed (Ag-Pd Sulphide)'.


Classification of ColdwelliteHide

Approved
Approval Year:
2014
First Published:
2015
2.BC.

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 ColdwelliteHide

Metallic
Colour:
White with a light pinkish brown tint
Streak:
Could not be measured
Comment:
could not be measured
Density:
9.90(1) g/cm3 (Calculated)

Chemical Properties of ColdwelliteHide

Formula:
Pd3Ag2S
Common Impurities:
Fe

Crystallography of ColdwelliteHide

Crystal System:
Isometric
Class (H-M):
4 3 2 - Gyroidal
Space Group:
P43 3 2
Setting:
P43 3 2
Cell Parameters:
a = 7.2470(8) Å
Unit Cell V:
380.61 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.427(100)
2.302(38)
2.195(38)
1.4280(44)
1.3519(13)
0.9433(12)
0.9294(24)
0.9208(20)
Comments:
From Type Description.

Type Occurrence of ColdwelliteHide

Place of Conservation of Type Material:
Type material is deposited in the collections of the Canadian Museum of Nature, Ottawa, Ontario, Canada, catalogue number CMNMC 86876
Geological Setting of Type Material:
Heavy mineral concentrate
Associated Minerals at Type Locality:

Synonyms of ColdwelliteHide

Related Minerals - Nickel-Strunz GroupingHide

2.BC.UM2004-45-Se:AgHgPd(Ag,Cu)6Hg2Pd2Se3
2.BC.05PalladseitePd17Se15
2.BC.05MiassiteRh17S15Iso.
2.BC.05UM2000-47-S:CuFePdPt(Cu,Fe,Pd,Pt,Rh)9S8
2.BC.10Oosterboschite(Pd,Cu)7Se5Orth.
2.BC.15ChrisstanleyiteAg2Pd3Se4Mon.
2.BC.15JagüéiteCu2Pd3Se4Mon. 2/m : P21/b
2.BC.20KeithconnitePd20Te7Trig.
2.BC.25Vasilite(Pd,Cu)16(S,Te)7
2.BC.30TelluropalladinitePd9Te4Mon.
2.BC.35LuberoitePt5Se4Mon. 2/m : P21/b
2.BC.40Oulankaite(Pd,Pt)5(Cu,Fe)4SnTe2S2Tet.
2.BC.45Telargpalite(Pd,Ag)3(Te,Bi)Iso.
2.BC.50TemagamitePd3HgTe3Trig. 3m : P3m1
2.BC.55SopcheiteAg4Pd3Te4Orth.
2.BC.60LaflammeitePd3Pb2S2Mon.
2.BC.65TischendorfitePd8Hg3Se9Orth.

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 ColdwelliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
McDonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J. and Spratt, J. (2014) Coldwellite, IMA 2014-045. CNMNC Newsletter No. 22, October 2014, page 1243; Mineralogical Magazine, 78, 1241-1248.
McDonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J., Lane, G., Spratt, J., Ames, D.E. (2015): Coldwellite, Pd3Ag2S, a new mineral species from the Marathon deposit, Coldwell Complex, Ontario, Canada. The Canadian Mineralogist. 53: 845-857.

Internet Links for ColdwelliteHide

Localities for ColdwelliteHide

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.
Canada (TL)
 
  • Ontario
    • Thunder Bay District
      • Coldwell complex
McDonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J. and Spratt, J. (2014) Coldwellite, IMA 2014-045. CNMNC Newsletter No. 22, October 2014, page 1243; Mineralogical Magazine, 78, 1241-1248 .Mcdonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J., Lane, G., Spratt, J. & Ames, D.E. (2015) Coldwellite, Pd3Ag2S, a new mineral species from the Marathon deposit, Coldwell complex, Ontario, Canada. Canadian Mineralogist 53, 1-13.
Mineral and/or Locality  
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