Sopcheite Mineral Data

Sopcheite Mineral Data +

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General Sopcheite Information

Chemical Formula:

Ag4Pd3Te4

Composition:

Molecular Weight = 1,261.13 gm

Silver 34.21 % Ag

Tellurium 40.47 % Te

Palladium 25.32 % Pd

______

100.00 %

Empirical Formula:

Ag₄Pd₃Te₄

Environment:

In veinlets cutting chalcopyrite.

IMA Status:

Approved IMA 1982

Locality:

Sopcha massif, Monchegorsk pluton, Kola, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

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Sopcheite Crystallography

Axial Ratios:

a:b:c =1.2199:1:1.3964

Cell Dimensions:

a = 9.645, b = 7.906, c = 11.04, Z = 4; V = 841.84 Den(Calc)= 9.95

Crystal System:

OrthorhombicSpace Group: Unk

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

By Intensity(I/I_o): 3.33(1), 1.805(0.07), 2.56(0.06),

Physical Properties of Sopcheite

Color:

Brownish gray.

Diaphaniety:

Opaque

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Optical Properties of Sopcheite

RL Anisotrophism:

Weak, yellowish red to bluish.

RL Color:

Light gray with a brownish tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Sopcheite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	34.90	39.20
420 nm	35.60	39.20
440 nm	37.20	39.50
460 nm	39.10	40.00
480 nm	41.40	40.60
500 nm	42.60	41.00
520 nm	43.10	41.30
540 nm	43.10	41.60
560 nm	43.30	42.20
580 nm	43.70	43.10
600 nm	44.10	44.00
620 nm	44.30	44.90
640 nm	44.40	45.60
660 nm	44.80	46.40
680 nm	45.20	47.30
700 nm	45.60	48.10

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

Calculated Properties of Sopcheite

Electron Density:

r_electron=8.43 gm/cc
note: r_Sopcheite=9.95 gm/cc.

Fermion Index

Fermion Index = 0.08886
Boson Index = 0.91114

Photoelectric:

PE_Sopcheite= 301.19 barns/electron
U=PE_Sopcheite x r_electron=2,537.94 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Sopcheite is Not Radioactive

Sopcheite Classification

Dana Class:

2.16.10.1 (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.07-40 II - Sulfides and sulphosalts

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

II/A.07 - Telargpalite - Borovskite series

II/A.07-10 Telargpalite (Pd,Ag)3Te Unk Cubic

II/A.07-20 Keithconnite Pd3-xTe(x=0.14to0.43) R 3 3

II/A.07-30 Telluropalladinite Pd9Te4 P 2₁/c 2/m

II/A.07-35 Oulankaite! (Pd,Pt)5(Cu,Fe)4SnTe2S2 Tetra

II/A.07-40 Sopcheite Ag4Pd3Te4 Unk Ortho

II/A.07-50 Temagamite Pd3HgTe3 Unk Ortho

II/A.07-60 Borovskite Pd3SbTe4 F m3m 4/m 3 2/m

Other Sopcheite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Sopcheite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Sopcheite

Ag4Pd3Te4
Dana No: 2.16.10.1 Strunz No: II/A.07-40
Locality:

Notes: