Jagueite Mineral Data

Jagueite Mineral Data

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General Jagueite Information

Chemical Formula:

Cu2Pd3Se4

Composition:

Molecular Weight = 768.13 gm

Copper 15.80 % Cu

Silver 1.54 % Ag

Palladium 42.26 % Pd

Selenium 40.40 % Se

______

100.00 %

Empirical Formula:

Cu_1.91Ag_0.11Pd_3.05Se_3.93

Environment:

Telethermal selenide vein-type deposit. Cu-analogue of Chrisstanleyite; structure determined

IMA Status:

Approved IMA 2004 (Dana # Added)

Locality:

El Chire prospect, Los Llantenes District of La Rioja Province, Argentina. Link to MinDat.org Location Data.

Name Origin:

Named after the small village of Jagué, which is located in the homonymous "Bolson de Jagué" (depression of Jagué).

Synonym:

IMA2002-060

Jagueite Image

Images:

Jagueite

Comments: Polished section (oil-immersion, plain polarized on left, cross-polarized on right) showing lobate grains of chrisstanleyite (Chr), replaced by jagu?ite (Jag), with tiemannite (Tie). The jagu?ite twinning is evident by banding in both images.
Location: El Chire prospect, Los Llantenes District of La Rioja Province, Argentina.. Scale: Picture size 150 µm.
© Canadian Mineralogist

Jagueite Crystallography

Axial Ratios:

a:b:c =0.5723:1:0.632

Cell Dimensions:

a = 5.672, b = 9.91, c = 6.264, Z = 2; beta = 115.4° V = 318.06 Den(Calc)= 8.02

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/c

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.676(1)(121), 2.63(0.64)(122), 1.92(0.36)(123), 2.508(0.31)(202), 2.269(0.27)(041), 1.95(0.27)(122), 1.866(0.24)(241), 2.759(0.23)(1

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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H - Help Screen
I - Data Info
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Topa D , Makovicky E , Balic-Zunic T , The Canadian Mineralogist , 44 (2006) p.497-505, The crystal structures of jagueite, Cu2Pd3Se4, and chrisstanleyite, Ag2Pd3Se4, Locality: El Chire, La Rioja, Argentina

Physical Properties of Jagueite

Cleavage:

None

Color:

Silvery gray.

Diaphaniety:

Opaque

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Anhedral Grains - Granular minerals without the expression of crystal shapes

Habit:

Intergrown Crystals - Occurs as intergrown crystalline aggregates

Habit:

Twinning Common - Crystals are usually twinned.

Hardness:

5 - Apatite

Luster:

Metallic

Streak:

black

Optical Properties of Jagueite

RL Anisotrophism:

Moderate.

RL Bireflectance:

Weak to moderate in air, distinct in oil.

RL Color:

Creamy yellowish with no internal reflections.

RL Pleochroism:

Light buff to creamy buff.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Jagueite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	36.10	46.00
420 nm	37.50	46.90
440 nm	39.00	48.00
460 nm	40.50	49.20
470 nm	41.00	50.10
480 nm	41.70	50.60
500 nm	42.80	51.50
520 nm	43.50	51.80
540 nm	44.00	51.80
546 nm	44.10	51.80
560 nm	44.40	51.80
580 nm	44.60	51.70
589 nm	44.60	51.70
600 nm	44.70	51.80
620 nm	45.00	51.90
640 nm	45.10	52.00
650 nm	45.10	52.00
660 nm	45.30	52.00
680 nm	45.60	52.10
700 nm	45.80	52.30

**Standardized Intensity (100%) Reflection Spectra of Jagueite in Oil**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	23.70	28.50
420 nm	24.50	29.60
440 nm	25.80	30.60
460 nm	26.70	31.70
470 nm	27.00	31.90
480 nm	27.60	32.30
500 nm	28.20	33.00
520 nm	28.70	33.50
540 nm	29.20	33.80
546 nm	29.20	33.80
560 nm	29.30	33.70
580 nm	29.40	33.70
589 nm	29.40	33.70
600 nm	29.70	33.70
620 nm	29.90	33.70
640 nm	30.10	34.00
650 nm	30.20	34.10
660 nm	30.30	34.20
680 nm	30.40	34.30
700 nm	30.70	34.30

**Calculated Relative Intensity Colors of Jagueite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	230%
R₁
R₂

**Calculated Relative Intensity Colors of Jagueite in Oil**
Relative Intensity	0%	40%	80%	100%	120%	160%	200%	240%	280%	320%	340%
R₁
R₂

Calculated Properties of Jagueite

Electron Density:

r_electron=6.98 gm/cc
note: r_Jagueite=8.02 gm/cc.

Fermion Index

Fermion Index = 0.12506
Boson Index = 0.87494

Photoelectric:

PE_Jagueite= 145.74 barns/electron
U=PE_Jagueite x r_electron=1,017.95 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Jagueite is Not Radioactive

Jagueite Classification

Dana Class:

2.16.10.3 (2)Sulfides - Including Selenides and Tellurides

(2.16)with miscellaneous formulae

(2.16.10)Chrisstanleyite Group

2.16.10.1 Sopcheite Ag4Pd3Te4 Unk Ortho

2.16.10.2 Chrisstanleyite! Ag2Pd3Se4 P 2₁/m or P 2₁ Mono

2.16.10.3 Jagueite ! Cu2Pd3Se4 P 2₁/c 2/m

Strunz Class:

II/A.06-25 II - Sulfides and sulphosalts

II/A - Alloys and alloylike compounds, with metals of the Platinum series, (Palladium)

II/A.06 - Vasilite - Luberoite series

II/A.06-05 Vasilite (Pd,Cu)16(S,Te)7 I 43m 4 3m

II/A.06-10 Oosterboschite (Pd,Cu)7Se3 Unk Ortho

II/A.06-20 Luberoite Pt5Se4 P 2₁/c 2/m

II/A.06-25 Jagueite Cu2Pd3Se4 P 2₁/c 2/m

II/A.06-30 Chrisstanleyite! Ag2Pd3Se4 P 2₁/m or P 2₁ Mono

II/A.06-40 Tischendorfite! Pd8Hg3Se9 Pmmn, P 2₁mn or Pm21n Ortho

Other Jagueite Information

References:

NAME( CanMin, 42:1745) PHYS. PROP.(CanMin, 42:1745) OPTIC PROP.(CanMin, 42:1745)

See Also:

Links to other databases for Jagueite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Print or Cut-and-Paste your Jagueite Specimen Label here :

Jagueite

Cu2Pd3Se4
Dana No: 2.16.10.3 Strunz No: II/A.06-25
Locality:

Notes: