Laflammeite Mineral Data

General Laflammeite Information

Chemical Formula:

Pd3Pb2S2

Composition:

Molecular Weight = 797.79 gm

Palladium 40.02 % Pd

Lead 51.94 % Pb

Sulfur 8.04 % S

______

100.00 %

Empirical Formula:

Pd₃Pb₂S₂

Environment:

Found with other PGM minerals in an ultra-basic intrusion. Related to parkerite Ni3Bi2S2

IMA Status:

Approved IMA 2002 (Dana # Added)

Locality:

Penikat layered complex, Finland. Link to MinDat.org Location Data.

Name Origin:

Named for J. H. Gilles Laflamme (1947-) of CANMET, Ottawa, who has contributed to the study of numerous PGM.

Synonym:

IMA2000-014

Laflammeite Image

Images:

Laflammeite Vysotskite

Comments: SEM image showing intergrowths of laflammeite (LF) with complexly zoned vysotskite (VS). The surrounding material is epoxy (black). (CanMin, v40:671).
Location: Kirakkajuppura PGE deposit, Penikat layered complex, Finland. Scale: See Image.
© Canadian Mineralogist

Laflammeite Crystallography

Axial Ratios:

a:b:c =1.4024:1:1.0115

Cell Dimensions:

a = 11.673, b = 8.323, c = 8.419, Z = 4; beta = 135.38° V = 574.52 Den(Calc)= 9.22

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 4.144(1)(020), 2.917(0.9)(220), 2.413(0.8)(022),2.365(0.7)(422), 5.953(0.6)(001), 2.082(0.5), 3.379(0.4),

Physical Properties of Laflammeite

Cleavage:

{010} Perfect

Color:

Brownish cream.

Diaphaneity:

Opaque

Fracture:

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

Habit:

Platy - Sheet forms (e.g. micas).

Habit:

Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Streak:

dark gray

Optical Properties of Laflammeite

RL Anisotrophism:

Weak, with brownish gray to grayish brown.

RL Bireflectance:

Weak.

RL Color:

Cream with brownish tints.

RL Pleochroism:

None.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Laflammeite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
470 nm	45.30	46.20
546 nm	46.50	47.55
589 nm	47.70	48.80
650 nm	49.60	50.00

**Standardized Intensity (100%) Reflection Spectra of Laflammeite in Oil**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
470 nm	31.55	32.45
546 nm	32.60	33.75
589 nm	33.90	35.05
650 nm	36.00	36.30

**Calculated Relative Intensity Colors of Laflammeite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	200%
R₁
R₂

**Calculated Relative Intensity Colors of Laflammeite in Oil**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	270%	280%
R₁
R₂

Calculated Properties of Laflammeite

Electron Density:

Bulk Density (Electron Density)=7.72 gm/cc
note: Specific Gravity of Laflammeite =9.22 gm/cc.

Fermion Index:

Fermion Index = 0.2
Boson Index = 0.8

Photoelectric:

PE_Laflammeite=1,052.80 barns/electron
U=PE_Laflammeite x rElectron Density=8,127.65 barns/cc.

Radioactivity:

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

Laflammeite Classification

Dana Class:

02.03.07.01 (02)Sulfides - Including Selenides and Tellurides

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

(02.03.07)Dana Group

02.03.07.01 Laflammeite! Pd3Pb2S2 C 2/m 2/m

Strunz Class:

02.BC.60 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

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

02.BC -With Rh, Pd, Pt, etc.

02.BC.60 Laflammeite! Pd3Pb2S2 C 2/m 2/m

Other Laflammeite Information

References:

NAME( AmMin, Vol 88, p 476) PHYS. PROP.(AmMin, Vol 88, p 476) OPTIC PROP.(AmMin, Vol 88, p 476)

See Also:

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

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Ask about Laflammeite here :
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Print or Cut-and-Paste your Laflammeite Specimen Label here :

Laflammeite

Pd3Pb2S2
Dana No: 02.03.07.01 Strunz No: 02.BC.60
Locality:

Notes: