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Vadlazarenkovite

A valid IMA mineral species
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Formula:
Pd8Bi1.5Te1.25As0.25
Colour:
grey
Lustre:
Metallic
Hardness:
4½ - 5
Specific Gravity:
11.947 (Calculated)
Crystal System:
Trigonal
Name:
in the honor of Professor Vadim Grigorievich Lazarenkov (ВаÐīÐļО ГŅ€ÐļÐģÐūŅ€ŅŒÐĩÐēÐļŅ‡ ЛазаŅ€ÐĩÐ―ÐšÐūÐē) (1933–2014), Soviet and Russian scientist who worked at the Saint-Petersburg Mining University, for his outstanding contributions to the geology and petrology of ultrabasic and basic rocks, including those from the Konder deposit, as well as to the geochemistry and mineralogy of PGE.
Isostructural with mertieite (may be understood as its BiTeAs-analogue). Unique combination of (species-defining) elements (at the upload time).


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Unique IdentifiersHide

Mindat ID:
470879
Long-form identifier:
mindat:1:1:470879:3

IMA Classification of VadlazarenkoviteHide

IMA status:
Approved
IMA Formula:
Pd8Bi1.5Te1.25As0.25
Approval year:
2023
Approval history:
IMA No. 2023-040

The name “vadlazarenkovite” was preferred to “lazarenkovite” to avoid confusion with the existing mineral lazarenkoite, CaFe3+As3+3O7·3H2O
Type description reference:
Kasatkin, Anatoly V.; Biagioni, Cristian; Nestola, Fabrizio; Agakhanov, Atali A.; Stepanov, Sergey Yu.; Gurzhiy, Vladislav V.; Petrov, Sergey V.; Pilugin, Andrey G. (2025) Vadlazarenkovite, Pd8Bi1.5Te1.25As0.25, a new mineral isotypic with mertieite from the Konder massif, Far East, Russia. Mineralogical Magazine, 89 (1). 92-101 doi:10.1180/mgm.2024.52

Classification of VadlazarenkoviteHide

Strunz-mindat (2026):
2.AC.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
C : Alloys of metalloids with PGE

Mineral SymbolsHide

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

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

Physical Properties of VadlazarenkoviteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Grey
Hardness:
4½ - 5 on Mohs scale
Hardness:
VHN50=406 - 443 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Fracture:
Irregular/Uneven
Density:
11.947 g/cm3 (Calculated)

Optical Data of VadlazarenkoviteHide

Anisotropism:
distinct anisotropy in grey tones
Bireflectance:
weak in air and noticeable in oil immersion
Reflectivity:
WavelengthR1 (%)R2 (%)
470nm47.2% 47.8%
546nm49.1% 50.8%
589nm50.7% 52.6%
650nm52.4% 54.6%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 54.6%.
R1 shown in black, R2 shown in red
Colour in reflected light:
white with pale creamy hue
Internal Reflections:
none
Pleochroism:
Non-pleochroic

Chemistry of VadlazarenkoviteHide

Mindat Formula:
Pd8Bi1.5Te1.25As0.25
Element Weights:
Element% weight
Pd63.390 %
Bi23.340 %
Te11.876 %
As1.395 %

Calculated from ideal end-member formula.
Elements listed:
As, Bi, Pd, Te - search for minerals with similar chemistry

Crystallography of VadlazarenkoviteHide

Crystal System:
Trigonal
Class (H-M):
3m(32/m) - Hexagonal Scalenohedral
Space Group:
R3c
Cell Parameters:
a = 7.7198(2) Å, c = 43.124(1) Å
Ratio:
a:c = 1 : 5.586
Unit Cell V:
2,225.68 ÅÂģ (Calculated from Unit Cell)
Z:
12

X-Ray Powder DiffractionHide

Type Occurrence of VadlazarenkoviteHide

Other Language Names for VadlazarenkoviteHide

Related Minerals - Strunz-mindat GroupingHide

2.AC.TÃķrnroositePd11As2Te2Iso. m3m(4/m32/m) : Fd3m
2.AC.05bVincentitePd3AsMon.
2.AC.05aAtheneitePd2As0.75Hg0.25Hex. 6m2 : P62m
2.AC.10cArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
2.AC.10bMertieitePd8Sb2.5As0.5Trig. 3m(32/m) : R3c
2.AC.10aStillwateritePd8As3Trig.
2.AC.15aIsomertieitePd11Sb2As2Iso. m3m(4/m32/m) : Fd3m
2.AC.15aMiessiitePd11Te2Se2Iso. m3m(4/m32/m) : Fd3m
2.AC.15bPseudomertieitePd11(Sb,As)4Hex.
2.AC.20cMenshikovitePd3Ni2As3Hex. 6/m : P63/m
2.AC.20aStibiopalladinitePd5Sb2Hex.
2.AC.20bPalarstanidePd5(Sn,As)2Hex.
2.AC.25cPalladodymite(Pd,Rh)2AsOrth. mmm(2/m2/m2/m) : Pnma
2.AC.25dNaldrettitePd2SbOrth. mm2 : Cmc21
2.AC.25bRhodarsenide(Rh,Pd)2AsOrth.
2.AC.25eMajakitePdNiAsHex.
2.AC.25aPalladoarsenidePd2AsMon. 2/m : P2/m
2.AC.25fPalladobismutharsenidePd2(As,Bi)Orth.
2.AC.30'UM1999-02-As:NiRh'(Rh,Ni)7As4
2.AC.30PolkanoviteRh12As7Hex. 6/m : P63/m
2.AC.35bUngavaitePd4Sb3Tet. 422 : P41212
2.AC.35aGenkinitePt4Sb3Tet. 422
2.AC.40PolaritePd(Bi,Pb)Orth. mm2 : Cmc21
2.AC.45aFrooditeÎą-PdBi2Mon. 2/m : B2/m
2.AC.50ViteitePd5InAsTet. 4/mmm(4/m2/m2/m) : P4/mmm
2.AC.50NipalarsiteNi8Pd3As4Iso. m3m(4/m32/m)

Other InformationHide

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 VadlazarenkoviteHide

References for VadlazarenkoviteHide

Localities for VadlazarenkoviteHide

Showing 1 localities.

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - 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.
Russia (TL)
 
  • Khabarovsk Krai
    • Ayano-Maysky district
      • Konder alkaline-ultrabasic massif
Bosi et al. (2023) +1 other reference
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