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Telluropalladinite Mineral Data
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General Telluropalladinite Information
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 Chemical Formula: |
Pd9Te4 |
| Composition: |
Molecular Weight = 1,468.18 gm |
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Tellurium 34.76 % Te |
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Palladium 65.24 % Pd |
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______ |
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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. |
| Name Pronunciation: |
Telluropalladinite + Pronunciation  |
| Synonym: |
ICSD 77893 |
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PDF 35-1013 |
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Telluropalladinite Image |
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Images:
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Kotulskite Telluropalladinite 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 |
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Telluropalladinite Crystallography
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| 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 - Prismatic H-M Symbol (2/m) Space Group: P 21/c |
| X Ray Diffraction: |
By Intensity(I/Io): 2.237(1), 1.306(0.5), 2.09(0.4), |
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Physical Properties of Telluropalladinite
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| Color: |
Silver white. |
| Density: |
10.25 |
| Diaphaneity: |
Opaque |
| Hardness: |
5 - Apatite |
| Luster: |
Metallic |
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Optical Properties of Telluropalladinite
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| 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 |
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∑ R(λ) |
| 420 nm |
44.60 |
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| 440 nm |
45.30 |
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| 460 nm |
45.90 |
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| 480 nm |
46.70 |
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| 500 nm |
47.80 |
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| 520 nm |
49.00 |
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| 540 nm |
50.00 |
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| 560 nm |
51.30 |
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| 580 nm |
52.60 |
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| 600 nm |
53.90 |
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| 620 nm |
55.20 |
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| 640 nm |
56.50 |
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| 660 nm |
57.80 |
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| 680 nm |
58.90 |
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| 700 nm |
60.10 |
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Calculated Relative Intensity Colors of Telluropalladinite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
200% |
| R |
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Calculated Properties of Telluropalladinite
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| Electron Density: |
Bulk Density (Electron Density)=9.02 gm/cc
note: Specific Gravity of Telluropalladinite =10.6 gm/cc.
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| Fermion Index: |
Fermion Index = 0.17
Boson Index = 0.83 |
| Photoelectric: |
PETelluropalladinite = 286.94 barns/electron
U=PETelluropalladinite x rElectron Density=2,586.82 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Telluropalladinite is Not Radioactive |
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Telluropalladinite Classification
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| Dana Class: |
02.16.06.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.16)with miscellaneous formulae |
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(02.16.06)Dana Group |
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02.16.06.01 Telluropalladinite Pd9Te4 P 21/c 2/m |
| Strunz Class: |
02.BC.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1) |
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02.BC -With Rh, Pd, Pt, etc. |
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02.BC.30 Telluropalladinite Pd9Te4 P 21/c 2/m |
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Other Telluropalladinite Information
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| 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 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
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Telluropalladinite
Pd9Te4
Dana No: 02.16.06.01 Strunz No: 02.BC.30
Locality:
Notes:
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