Pasavaite Mineral Data

General Pasavaite Information

Chemical Formula:

Pd3Pb2Te2

Composition:

Molecular Weight = 989.23 gm

Tellurium 26.06 % Te

Palladium 31.84 % Pd

Lead 42.10 % Pb

______

100.00 %

Empirical Formula:

Pd_2.96Pb_2.01Te_2.02

Environment:

Inclustions in polarite grains. Shandite group.

IMA Status:

Approved IMA 2007 (Dana # Added)

Locality:

Talnakh deposit, Noril’sk-Talnakh camp, Taimyr Autonomous District, Siberia, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for Jan Pasava, in recognition of his important contributions to the geochemistry of platinum-group elements in anoxic environments and related ore deposits.

Synonym:

IMA2007-059

Pasavaite Image

Images:

Pasavaite Polarite

Comments: BSE image of pasavaite (pas) embedded in polarite (po) in association with sperrylite (sp), Pd-Pb-Bi-Te and Au-Ag phases. (CanMin, v47:53).
Location: Talnakh deposit, Norilâ€™sk-Talnakh Ni-Cu camp, Taimyr Autonomous District, Russia. Scale: See Image.
© Canadian Mineralogist

Pasavaite Crystallography

Axial Ratios:

a:b:c =1.4481:1:1.0638

Cell Dimensions:

a = 8.599, b = 5.9381, c = 6.3173, Z = 2; V = 322.57 Den(Calc)= 10.18

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmmn

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

By Intensity(I/I_o): 3.0495(1), 2.1637(0.71), 2.5456(0.63),1.8906(0.42), 2.2786(0.42), 2.4424(0.34), 6.3152(0.34), 3.1572(0.33),

Physical Properties of Pasavaite

Cleavage:

{001} Poor

Color:

Gray.

Density:

9.9

Diaphaneity:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Inclusions - Generally found as inclusions in other minerals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

2 - Gypsum

Luster:

Metallic

Streak:

gray

Optical Properties of Pasavaite

RL Anisotrophism:

Distinct to strong with no internal reflections.

RL Bireflectance:

Strong.

RL Color:

Pale pink with a brown tint.

RL Pleochroism:

Brownish pink to light pink.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Pasavaite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
420 nm	46.80	38.90
440 nm	48.30	40.20
460 nm	49.60	41.60
470 nm	49.90	42.40
480 nm	50.20	42.70
500 nm	50.60	43.30
520 nm	51.30	43.80
540 nm	51.70	44.50
546 nm	51.80	44.60
560 nm	52.00	45.90
580 nm	52.20	45.40
589 nm	52.20	45.70
600 nm	52.20	46.00
620 nm	52.60	46.40
640 nm	52.70	46.60
650 nm	52.80	46.90
660 nm	52.90	47.10
680 nm	53.40	47.20
700 nm	53.70	47.40

**Calculated Relative Intensity Colors of Pasavaite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	220%
R₁
R₂

Calculated Properties of Pasavaite

Electron Density:

Bulk Density (Electron Density)=8.36 gm/cc
note: Specific Gravity of Pasavaite =10.2 gm/cc.

Fermion Index:

Fermion Index = 0.18
Boson Index = 0.82

Photoelectric:

PE_Pasavaite= 965.81 barns/electron
U=PE_Pasavaite x rElectron Density=8,070.85 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pasavaite is Not Radioactive

Pasavaite Classification

Dana Class:

02.03.05.03 (02)Sulfides - Including Selenides and Tellurides

(02.03)where Am Bn Xp, with (m+n):p=5:2

(02.03.05)Shandite Group

02.03.05.01 Shandite Pb2Ni3S2 R 3m 3 2/m

02.03.05.02 Rhodplumsite Pb2Rh3S2 R 3m 3 2/m

02.03.05.03 Pasavaite! Pd3Pb2Te2 Pmmn 2/m 2/m 2/m

Strunz Class:

02.BE.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)

02.BE -With Pb(Bi)

02.BE.30 Pasavaite! Pd3Pb2Te2 Pmmn 2/m 2/m 2/m

Other Pasavaite Information

References:

NAME( CanMin, v47:53) PHYS. PROP.(CanMin, v47:53) OPTIC PROP.(CanMin, v47:53)

See Also:

Links to other databases for Pasavaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Ask about Pasavaite here :
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Mindat.org's Discussion Groups
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Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Pasavaite

Pd3Pb2Te2
Dana No: 02.03.05.03 Strunz No: 02.BE.30
Locality:

Notes: