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Padmaite

A valid IMA mineral species
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09345030017271925615436.jpg
Padmaite

Srednyaya Padma mine, Zaonezhie peninsula, Medvezhyegorsky District, Republic of Karelia, Russia
09345030017271925615436.jpg
Padmaite

Srednyaya Padma mine, Zaonezhie peninsula, Medvezhyegorsky District, Republic of Karelia, Russia
09345030017271925615436.jpg
Padmaite

Srednyaya Padma mine, Zaonezhie peninsula, Medvezhyegorsky District, Republic of Karelia, Russia
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About PadmaiteHide

08666530017271925653074.jpg
Low-radioactive dumps of Srednyaya Padma mine.

Srednyaya Padma mine, Zaonezhie peninsula, Medvezhyegorsky District, Republic of Karelia, Russia
Formula:
PdBiSe
Colour:
Light yellow
Lustre:
Metallic
Hardness:
3 - 4
Specific Gravity:
9.86 (Calculated)
Crystal System:
Isometric
Member of:
Cobaltite Group
Name:
Named by Y.S. Polekhovskij et al. in 1991 for the type locality of Srednyaya Padma mine, Russia.
Compare UM1990-55-Se:BiCuPbPdS and 'Unnamed (Pd-Bi-Cu Selenide)'.


Unique IdentifiersHide

Mindat ID:
3060
Long-form identifier:
mindat:1:1:3060:7

IMA Classification of PadmaiteHide

Classification of PadmaiteHide

Strunz-mindat (2025):
2.EB.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
Dana 8th ed.:
2.12.3.10

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2

Mineral SymbolsHide

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

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

Physical Properties of PadmaiteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Light yellow
Hardness:
3 - 4 on Mohs scale
Hardness:
VHN20=260 - 272 kg/mm2 - Vickers
Cleavage:
Imperfect/Fair
Imperfect cleavage in two perpendicular directions.
Density:
9.86 g/cm3 (Calculated)

Optical Data of PadmaiteHide

Type:
Isotropic
Reflectivity:
WavelengthR1 (%)
400nm46.5%
420nm45.4%
440nm44.9%
460nm46.6%
470nm47.5%
480nm48.0%
500nm48.0%
520nm49.0%
540nm48.6%
546nm48.3%
560nm47.7%
580nm46.8%
589nm46.8%
600nm46.0%
620nm45.4%
640nm45.3%
650nm45.6%
660nm45.6%
680nm48.7%
700nm51.4%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 51.4%.
Colour in reflected light:
Pinkish yellow
Internal Reflections:
None

Chemistry of PadmaiteHide

Mindat Formula:
PdBiSe
Element Weights:
Element% weight
Bi52.992 %
Pd26.986 %
Se20.022 %

Calculated from ideal end-member formula.
Elements listed:
Bi, Pd, Se - search for minerals with similar chemistry
Common Impurities:
Pt,Ag,S

Crystallography of PadmaiteHide

Crystal System:
Isometric
Class (H-M):
4 3 2 - Gyroidal
Cell Parameters:
a = 6.448(3) Å
Unit Cell V:
268.09 ų (Calculated from Unit Cell)
Z:
4
Comment:
Space Group: P4132 or P4332 (by analogy to synthetic PdBiSe)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.89 Å(100)
2.63 Å(90)
1.943 Å(90)
1.724 Å(50)
1.376 Å(40)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of PadmaiteHide

Type Locality:
ⓘ Srednyaya Padma mine, Zaonezhie peninsula, Medvezhyegorsky District, Republic of Karelia, Russia
General Appearance of Type Material:
Isometric, irregular grains up to 0.2 mm in diameter, and as symplectic intergrowths with palladium sulfides up to 0.01-0.02 mm.
Place of Conservation of Type Material:
Mining Museum, St. Peterburg, Russia.
Geological Setting of Type Material:
Metasomatic rocks formed in shungite-bearing metashales of Lower Proterozoic age.
Associated Minerals at Type Locality:
Native BismuthBohdanowicziteClausthaliteDolomiteFroodite
Native GoldHematiteParaguanajuatitePhengiteQuartz
RoscoeliteSobolevskite
Reference:
Polekhovskij, Y.S., Voloshin, A.V., Tarasova, I.P., Nikitin, S.A., Pakhomovskij, Y.A., Men´shikov, Y.P., Kretzer, Y.L., Kolytscheva, T.I. (1991) Padmaite PdBiSe—a new selenide of palladium and bismuth from metasomatites of the southern Karelia. Zapiski Vsesoyuznogo (Vserossiyskogo) Mineralogicheskogo Obshchestva: 120(3): 85-88.

Synonyms of PadmaiteHide

Other Language Names for PadmaiteHide

Dutch:Padmaiet
German:Padmait
Simplified Chinese:硒铋钯矿
Spanish:Padmaita
Traditional Chinese:硒鉍鈀礦

Relationship of Padmaite to other SpeciesHide

Member of:
Cobaltite Group
Other Members of Cobaltite Group:
AndrieslombaarditeRhSbSIso. 2 3 : P21 3
ChangchengiteIrBiSIso. 2 3 : P21 3
CobaltiteCoAsSOrth. mm2 : Pca21
GersdorffiteNiAsSIso. 2 3 : P21 3
GuixiangiteNiBiSIso. 2 3 : P21 3
Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3) : Pa3
Irarsite(Ir,Ru,Rh,Pt)AsSIso. m3 (2/m 3) : Pa3
JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
KalungaitePdAsSeIso. m3 (2/m 3) : Pa3
MaslovitePtBiTeIso. 2 3 : P21 3
MayingiteIrBiTeIso. m3 (2/m 3) : Pa3
MicheneritePdBiTeIso. 2 3 : P21 3
MilotaitePdSbSeIso. 2 3 : P21 3
PlatarsitePt(As,S)2Iso. m3 (2/m 3) : Pa3
TestibiopalladitePdSbTeIso.
TolovkiteIrSbSIso.
UllmanniteNiSbSIso. 2 3 : P21 3
UM1991-19-Se:AsCo(Co,Ni)AsSeIso. m3 (2/m 3) : Pm3
WillyamiteCoSbS

Related Minerals - Strunz-mindat GroupingHide

2.EB.SelenolauriteRuSe2Iso. m3 (2/m 3) : Pa3
2.EB.AndrieslombaarditeRhSbSIso. 2 3 : P21 3
2.EB.Iridarsenite(Ir,Ru)As2Mon. 2/m : P21/b
2.EB.Kanatzidisite(SbBiS3)2Te2Mon. 2/m : P21/m
2.EB.05aVaesiteNiS2Iso. m3 (2/m 3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3 (2/m 3) : Pa3
2.EB.05aLauriteRuS2Iso. m3 (2/m 3) : Pa3
2.EB.05aGaotaiiteIr3Te8Iso. m3 (2/m 3) : Pa3
2.EB.05aPenroseite(Ni,Co,Cu)Se2Iso. m3 (2/m 3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
2.EB.05aVillamanínite(Cu,Ni,Co,Fe)S2Tric.
2.EB.05aErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3 (2/m 3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aCattieriteCoS2Iso. m3 (2/m 3) : Pa3
2.EB.05aAurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aTrogtaliteCoSe2Iso. m3 (2/m 3) : Pa3
2.EB.05a vCayeuxite
2.EB.05aKruťaiteCuSe2Iso. m3 (2/m 3) : Pa3
2.EB.05aPyriteFeS2Iso. m3 (2/m 3) : Pa3
2.EB.05aInsizwaitePtBi2Iso. m3 (2/m 3) : Pa3
2.EB.05bBambollaiteCu(Se,Te)2Tet.
2.EB.05aDzharkeniteFeSe2Iso. m3 (2/m 3) : Pa3
2.EB.10aMarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10eParacostibiteCoSbSOrth. mmm (2/m 2/m 2/m) : Pbca
2.EB.10fOeniteCoSbAsOrth.
2.EB.10ePararammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pbca
2.EB.10aMattagamiteCoTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aPetříčekiteCuSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aKulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15bSeinäjokiteFeSb2Orth.
2.EB.15aRammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15cPaxiteCuAs2Mon. 2/m : P21/b
2.EB.15aNisbiteNiSb2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aLöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aSafflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aOmeiite(Os,Ru)As2Orth.
2.EB.15aAnduoite(Ru,Os)As2Orth.
2.EB.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20Ruarsite(Ru,Os)AsSMon.
2.EB.20Osarsite(Os,Ru)AsSMon.
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.25MayingiteIrBiTeIso. m3 (2/m 3) : Pa3
2.EB.25MaslovitePtBiTeIso. 2 3 : P21 3
2.EB.25ParagersdorffiteNi(As,S)2Iso. m3 (2/m 3) : Pa3
2.EB.25OrthogersdorffiteNiAsSOrth. mm2 : Pca21
2.EB.25JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GuixiangiteNiBiSIso. 2 3 : P21 3
2.EB.25TestibiopalladitePdSbTeIso.
2.EB.25 vaAntimony-bearing GersdorffiteNi(As,Sb)S
2.EB.25KalungaitePdAsSeIso. m3 (2/m 3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3) : Pa3
2.EB.25MicheneritePdBiTeIso. 2 3 : P21 3
2.EB.25GersdorffiteNiAsSIso. 2 3 : P21 3
2.EB.25MilotaitePdSbSeIso. 2 3 : P21 3
2.EB.25TolovkiteIrSbSIso.
2.EB.25PlatarsitePt(As,S)2Iso. m3 (2/m 3) : Pa3
2.EB.25WillyamiteCoSbS
2.EB.25ChangchengiteIrBiSIso. 2 3 : P21 3
2.EB.25KvačekiteNiSbSeIso. 2 3 : P21 3
2.EB.25KrutoviteNiAs2Iso. 2 3 : P21 3
2.EB.25UllmanniteNiSbSIso. 2 3 : P21 3
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsSIso. m3 (2/m 3) : Pa3
2.EB.30UrvantsevitePd(Bi,Pb)2Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
2.EB.35RheniiteReS2Tric. 1 : P1

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 PadmaiteHide

References for PadmaiteHide

Localities for PadmaiteHide

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.

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.
Brazil
 
  • Goiás
    • Cavalcante
Menez +2 other references
  • Pará
    • Curionópolis
Moroni et al. (2001)
Canada
 
  • Ontario
    • Greater Sudbury
      • Levack Township
Dare et al. (2014)
    • Thunder Bay District
Liferovich & Mitchell pers. comm. L. ...
China
 
  • Gansu
    • Jinchang
      • Jinchuan District
Porter (Mike)
Morocco
 
  • Drâa-Tafilalet Region
    • Zagora Province
      • Zagora Cercle
        • Tinzouline Caïdat
          • Bleida Mines
Kalinin et al. (2022)
Poland
 
  • Lubusz Voivodeship
    • Nowa Sól County
Oszczepalski et al. (2017)
Russia
 
  • Komi Republic
    • Kozhim River Basin
      • Maldynyrd range (Maldy-nyrd range)
Onishchenko et al. (2022)
  • Republic of Karelia
    • Medvezhyegorsky District
      • Zaonezhie peninsula
ZVMO 110 +4 other references
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