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Jagüéite

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Formula:
Cu2Pd3Se4
Colour:
Creamy yellowish
Lustre:
Metallic
Hardness:
5
Specific Gravity:
8.01 (Calculated)
Crystal System:
Monoclinic
Name:
Named after the village of Jagüé, which is the closest settlement to El Chire, the mine where the mineral was discovered.
Copper analogue of chrisstanleyite.

Occurs in a telethermal selenide vein-type deposit.

Originally called "jaguéite"; renamed in 2010 (IMA 10-D).


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Classification of JagüéiteHide

Notes:
Published without approval
Approval History:
Published without approval: 2010
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 JagüéiteHide

Metallic
Transparency:
Opaque
Colour:
Creamy yellowish
Streak:
Black
Hardness:
Hardness:
VHN25=464 - 772 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
8.01 g/cm3 (Calculated)

Optical Data of JagüéiteHide

Type:
Anisotropic
Anisotropism:
moderate: brownish - bluish - greenish rotation tints
Bireflectance:
Weak to moderate
Reflectivity:
460 nmR1=40.4%R2=48.4%
540 nmR1=44.2%R2=50.7%
580 nmR1=44.7%R2=50.6%
640 nmR1=45.1%R2=50.6%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 50.7%.
R1 shown in black, R2 shown in red
Colour in reflected light:
buff to grey-green
Internal Reflections:
not observed
Pleochroism:
Weak
Comments:
Light buff to creamy buff

Chemical Properties of JagüéiteHide

Formula:
Cu2Pd3Se4

Crystallography of JagüéiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 5.672 Å, b = 9.91 Å, c = 6.264 Å
β = 115.4°
Ratio:
a:b:c = 0.572 : 1 : 0.632
Unit Cell V:
318.1 ų
Z:
2
Twinning:
Prominent spindle-shaped (almost identical to those in chrisstanleyite)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.776 (22)
2.759 (23)
2.676 (100)
2.630 (64)
2.508 (31)
2.269 (27)

First Recorded Occurrence of JagüéiteHide

General Appearance of First Recorded Material:
anhedral grains that lack a distinct morphology. Aggregates of intergrown jaguéite and chrisstanleyite measure up to 100 × 20 µm; single grains, however, do not exceed 60 µm
Geological Setting of First Recorded Material:
A telethermal selenide vein-type deposit
Associated Minerals at First Recorded Locality:

Synonyms of JagüéiteHide

Other Language Names for JagüéiteHide

German:Jaguéit

Related Minerals - Nickel-Strunz GroupingHide

2.BC.UM2004-45-Se:AgHgPd(Ag,Cu)6Hg2Pd2Se3
2.BC.ColdwellitePd3Ag2SIso. 4 3 2 : P43 3 2
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.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 JagüéiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Paar, W.H., Werner, H., Topa, D., Makovicky, E., Sureda, R.J., De Brodtkorb, M.K., Nickel, E.H., and Putz, H. (2004) Jagueite, Cu2Pd3Se4, a new mineral species from El Chire, La Rioja, Argentina. Canadian Mineralogist: 42(6): 1745-1755.

Internet Links for JagüéiteHide

Localities for JagüéiteHide

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.
Argentina (FRL)
 
  • La Rioja
    • General Lamadrid department
      • Los Llantenes district
Canadian Mineralogist (2004): 42(6): 1745-1755.
Australia
 
  • Western Australia
    • East Pilbara Shire
      • Rudall River District
The Canadian Mineralogist, Vol. 42, pp. 1745-1755 (2004)
Democratic Republic of the Congo
 
  • Katanga (Shaba)
    • Kolwezi District
      • Kolwezi
Wilson, W. E. (2018) The Musonoi mine, Kolwezi District, Lualaba Province, Democratic Republic of the Congo. Mineralogical Record 49:236-304
Mineral and/or Locality  
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