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⇱ Laflammeite: Mineral information, data and localities.

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Laflammeite

A valid IMA mineral species
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Formula:
Pd3Pb2S2
Colour:
Cream-colored with a brownish tint
Lustre:
Metallic
Hardness:
3½
Specific Gravity:
9.41 (Calculated)
Crystal System:
Monoclinic
Name:
Named for Joseph Hector Gilles Laflamme (b. 1947), Canadian mineralogist, of the Canada Centre for Mineral and Energy Technology (CANMET), Ottawa, in recognition of his important contributions to the characterization of platinum-group minerals.
New parkerite-type sulfide. Chemically similar to UM1990-43-S:PbPd and UM1990-44-S:PbPd.




Unique IdentifiersHide

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Mindat ID:
10743
Long-form identifier:
mindat:1:1:10743:3

IMA Classification of LaflammeiteHide

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Approved
First published:
2002

Classification of LaflammeiteHide

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2.BC.60

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
C : With Rh, Pd, Pt, etc.

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
LflIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of LaflammeiteHide

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Metallic
Transparency:
Opaque
Colour:
Cream-colored with a brownish tint
Streak:
Dark gray
Hardness:
3½ on Mohs scale
Hardness:
VHN50=156 - 185 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
Perfect, possibly {010}
Density:
9.41 g/cm3 (Calculated)

Optical Data of LaflammeiteHide

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Anisotropism:
Weak, brownish gray to grayish brown
Bireflectance:
weak
Reflectivity:
WavelengthR1 (%)R2 (%)imR1 (%)imR2 (%)
400nm44.0%45.2%30.5%31.9%
440nm44.9%46.0%31.4%32.55%
470nm45.3%46.2%31.55%32.45%
500nm45.6%46.4%31.75%32.6%
520nm45.9%46.8%32.1%33.05%
546nm46.5%47.55%32.6%33.75%
560nm46.7%47.75%32.9%34.1%
589nm47.7%48.8%33.9%35.05%
620nm48.6%49.4%34.85%35.75%
650nm49.6%50.0%36.0%36.3%
680nm50.55%50.15%36.8%36.6%
700nm51.3%50.4%37.55%36.7%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 51.3%.
R1 shown in black, R2 shown in , imR1 shown in , imR2 shown in
Colour in reflected light:
Cream-colored with a brownish tint
Internal Reflections:
None

Chemistry of LaflammeiteHide

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Mindat Formula:
Pd3Pb2S2
Element Weights:
Element% weight
Pb51.944 %
Pd40.018 %
S8.039 %

Calculated from ideal end-member formula.

Crystallography of LaflammeiteHide

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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 11.521(11) Å, b = 8.294(10) Å, c = 8.321(6) Å
β = 134.38(5)°
Ratio:
a:b:c = 1.389 : 1 : 1.003
Unit Cell V:
568.28 ų (Calculated from Unit Cell)
Z:
4
Twinning:
Finely twinned
Comment:
: Space Group: C2/m by analogy to parkerite

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
5.953 Å(60)
4.144 Å(100)
2.917 Å(90)
2.413 Å(80)
2.365 Å(70)
2.082 Å(50)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 3b: Earth’s earliest hydrosphere>4.45
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Stage 4b: Highly evolved igneous rocks>3.0
37 : Layered igneous intrusions and related PGE minerals

Type Occurrence of LaflammeiteHide

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General Appearance of Type Material:
Subhedral platelets up to 300 µm in longest dimension.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Canada (CMNMC 83195).
Geological Setting of Type Material:
PGE deposit in altered pyroxenite.
Associated Minerals at Type Locality:

Synonyms of LaflammeiteHide

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Other Language Names for LaflammeiteHide

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German:Laflammeit
Simplified Chinese:硫铅钯矿
Spanish:Laflammeita
Traditional Chinese:硫鉛鈀礦

Related Minerals - Strunz-mindat GroupingHide

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2.BC.PanskyitePd9Ag2Pb2S4Tet. 4/mmm(4/m2/m2/m) : I4/mmm
2.BC.FleetiteCu2RhIrSb2Iso. m3m(4/m32/m) : Fd3m
2.BC.ColdwellitePd3Ag2SIso. 432 : P4332
2.BC.'UM2004-45-Se:AgHgPd'(Ag,Cu)6Hg2Pd2Se3
2.BC.05'UM2000-47-S:CuFePdPt'PtPd(Fe,Cu)S
2.BC.05MiassiteRh17S15Iso. m3m(4/m32/m) : Pm3n
2.BC.05PalladseitePd17Se15Iso. m3m(4/m32/m)
2.BC.10Oosterboschite(Pd,Cu)7Se5Orth.
2.BC.15ChrisstanleyiteAg2Pd3Se4Mon. 2/m : P21/b
2.BC.15JagüéiteCu2Pd3Se4Mon. 2/m : P21/b
2.BC.20KeithconnitePd20Te7Trig. 3 : R3
2.BC.25Vasilite(Pd,Cu)16(S,Te)7Iso. 43m : I43m
2.BC.30TelluropalladinitePd9Te4Mon. 2/m : P21/b
2.BC.35KojonenitePd7-xSnTe2 (0.3 ≤ x ≤ 0.8)Tet. 4/mmm(4/m2/m2/m) : I4/mmm
2.BC.35LuberoitePt5Se4Mon. 2/m : P21/b
2.BC.37KravtsovitePdAg2SOrth. mmm(2/m2/m2/m) : Cmcm
2.BC.40Oulankaite(Pd,Pt)5(Cu,Fe)4SnTe2S2Tet.
2.BC.40LukkulaisvaaraitePd14Ag2Te9Tet. 4/m : I4/m
2.BC.42MonchetundraitePd2NiTe2Orth. mmm(2/m2/m2/m) : Ibam
2.BC.45Telargpalite(Pd,Ag)3(Te,Bi)Iso.
2.BC.45ThalhammeritePd9Ag2Bi2S4Tet. 4/mmm(4/m2/m2/m) : I4/mmm
2.BC.47VymazalováitePd3Bi2S2Iso. 23 : I213
2.BC.50TemagamitePd3HgTe3Trig. 3m : P3m1
2.BC.55BowlesitePtSnSOrth. mm2 : Pca21
2.BC.55SopcheiteAg4Pd3Te4Orth.
2.BC.65TischendorfitePd8Hg3Se9Orth.

Other InformationHide

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Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for LaflammeiteHide

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mindat.org URL:
https://www.mindat.org/min-10743.html
Please feel free to link to this page.

References for LaflammeiteHide

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Localities for LaflammeiteHide

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Showing 10 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 👁 Image
symbol to view information about a locality. The 👁 Image
symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Canada
  • Ontario
    • Thunder Bay District
      • Coldwell complex
McDonald et al. (2015)
Good et al. (2017)
      • Seeley Lake Area
EcoMetrix Reort for Stillwater Canada Inc (2012)
Finland (TL)
  • Lapland
    • Penikat complex
      • Sompujärvi Reef
Barkov et al. (2002) +1 other reference
Russia
  • Khabarovsk Krai
    • Ayano-Maysky district
Anatoly Kasatkin analytical data
  • Krasnoyarsk Krai
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
- (2014)
  • Murmansk Oblast
    • Fedorovo-Pansky massif (Pana layered complex)
Ivanov et al. (2020, July)
Vymazalová et al. (2021)
Groshev +7 other references
    • Monchegorsk
Karimova et al. (2016)
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