Telluropalladinite Mineral Data

Telluropalladinite Mineral Data +

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General Telluropalladinite Information

Chemical Formula:

Pd9Te4

Composition:

Molecular Weight = 1,468.18 gm

Tellurium 34.76 % Te

Palladium 65.24 % Pd

______

100.00 %

Empirical Formula:

Pd₉Te₄

Environment:

As tiny grains in mineral concentrates.

IMA Status:

Approved IMA 1979

Locality:

J-M reef, Stillwater Complex, Nye County, Montana, USA Link to MinDat.org Location Data.

Name Origin:

Named for the composition.

Synonym:

ICSD 77893

PDF 35-1013

Telluropalladinite Image

Images:

Click Here for Larger Telluropalladinite Image

Telluropalladinite Kotulskite Keithconnite

Comments: Polyphase grain of (1) ferroan platinum corroded by (2) Pt(Fe,Cu) and overgrown by (5) telluropalladinite, an unknown (6) Pd-Te-Fe-Si-O phase, (7) Fe-hydroxide and (8) a Ca-Mn-Fe silicate with inclusions of (3) kotulskite and (4) keithconnite. (BGR).
Location: Stream sediments of rivers in the vicinity of the original discovery of the Merensky Reef on the farm Maandagshoek close to Burgersfort in the Eastern Bushveld, South Africa.. Scale: See Image.
© Federal Institute for Geosciences and Natural Resources

Telluropalladinite Crystallography

Axial Ratios:

a:b:c =0.534:1:0.6322

Cell Dimensions:

a = 7.45, b = 13.95, c = 8.82, Z = 4; beta = 91.9° V = 916.14 Den(Calc)= 10.64

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): 2.237(1), 1.306(0.5), 2.09(0.4),

Physical Properties of Telluropalladinite

Color:

Silver white.

Density:

10.25

Diaphaniety:

Opaque

Hardness:

5 - Apatite

Luster:

Metallic

Optical Properties of Telluropalladinite

RL Anisotrophism:

Moderate to strong in air, strong in oil, in gray to light brownish gray.

RL Color:

Cream with a yellowish tint.

RL Pleochroism:

None in air, very faintly discernible in oil.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Telluropalladinite in Air**
λ	R	∑ R(λ)
420 nm	44.60
440 nm	45.30
460 nm	45.90
480 nm	46.70
500 nm	47.80
520 nm	49.00
540 nm	50.00
560 nm	51.30
580 nm	52.60
600 nm	53.90
620 nm	55.20
640 nm	56.50
660 nm	57.80
680 nm	58.90
700 nm	60.10

**Calculated Relative Intensity Colors of Telluropalladinite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	200%
R

Calculated Properties of Telluropalladinite

Electron Density:

r_electron=9.02 gm/cc
note: r_{Telluropalladinite}=10.6 gm/cc.

Fermion Index

Fermion Index = 0.17344
Boson Index = 0.82656

Photoelectric:

PE_{Telluropalladinite}= 286.94 barns/electron
U=PE_{Telluropalladinite} x r_electron=2,586.82 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Telluropalladinite is Not Radioactive

Telluropalladinite Classification

Dana Class:

2.16.6.1 (2)Sulfides - Including Selenides and Tellurides

(2.16)with miscellaneous formulae

(2.16.6)Dana Group

2.16.6.1 Telluropalladinite Pd9Te4 P 2₁/c 2/m

Strunz Class:

II/A.07-30 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 Telluropalladinite Information

References:

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

See Also:

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

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

Telluropalladinite

Pd9Te4
Dana No: 2.16.6.1 Strunz No: II/A.07-30
Locality:

Notes: