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Isomertieite

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Formula:
Pd
 
11
Sb
 
2
As
 
2
System:IsometricColour:Pale yellow in reflected ...
Lustre:MetallicHardness:
Member of:Isomertieite Group
Name:For its structural and compositional relationship to mertieite-I.
Dimorph of:Mertieite-I
This page provides mineralogical data about Isomertieite.

Classification of Isomertieite

IMA status:Approved
Strunz 8th edition ID:2/A.05-50
Nickel-Strunz 10th (pending) edition ID:2.AC.15a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
C : Alloys of metalloids with PGE
Dana 8th edition ID:2.16.2.1

2 : SULFIDES
16 : Miscellaneous
Hey's CIM Ref.:3.12.37

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
12 : Sulphides etc. of the platinum metals
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Type Occurrence of Isomertieite

Type Locality:Itabira, Iron Quadrangle, Minas Gerais, Brazil
Place of Conservation of Type Material:The Natural History Museum, London, England: BM 1934,72; National Museum of Natural History, Washington, D.C., USA: 142504.
Year of Discovery:1974
Geological Setting of type material:In heavy-metal concentrates from Precambrian iron-precious metal deposits.
Associated Minerals at type locality:
ArsenopalladiniteAtheneitePalladseiteHematiteGold

Physical Properties of Isomertieite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Pale yellow in reflected light
Hardness (Mohs):
Hardness (Vickers):VHN100=587 - 597 kg/mm2
Density (calculated):10.33 g/cm3

Crystallography of Isomertieite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fd3m {F41/d 3 2/m}
Space Group Setting:Fd3m
Cell Parameters:a = 12.283Å
Unit Cell Volume:V 1,853.16 ų (Calculated from Unit Cell)
Z:16
X-Ray Powder Diffraction:
d-spacingIntensity
2.356 (90)
2.167 (100)
1.533 (70)
1.446 (60)
1.253 (70)
1.188 (70)
0.996 (70)
Comments:Sample from Itabira, Brazil.

Optical Data of Isomertieite

Type:Anisotropic
Anisotropism:Weak
Reflectivity:
400nmR=43.2%
420nmR=44.1%
440nmR=45.5%
460nmR=47.2%
480nmR=49.2%
500nmR=51.2%
520nmR=53.1%
540nmR=54.8%
560nmR=56.2%
580nmR=57.4%
600nmR=58.6%
620nmR=59.4%
640nmR=60.1%
660nmR=60.5%
680nmR=60.8%
700nmR=61.1%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 61.1%.
Colour in reflected light:Pale yellow-white

Chemical Properties of Isomertieite

Formula:
Pd
 
11
Sb
 
2
As
 
2
Simplified for copy/paste:Pd11Sb2As2
Essential elements:As, Pd, Sb
All elements listed in formula:As, Pd, Sb
Analytical Data:Average of 4 electron-microprobe analyses; sample from Itabira, Brazil.
Pd (72.4)
Cu (1.1)
Sb (15.6)
As (10.9)
Total (100.0)
Empirical Formula:
(Pd
 
4.88
Cu
 
0.12
)As
 
1.04
Sb
 
0.92
Common Impurities:Au,Cu

Relationship of Isomertieite to other Species

Member of:Isomertieite Group
Other Members of Group:

- +
Miessiite
Pd
 
11
Te
 
2
Se
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
2.AC.05aAtheneite
Pd
 
2
As
 
0.75
Hg
 
0.25
2.AC.05bVincentite
Pd
 
3
As
2.AC.10cArsenopalladinite
Pd
 
8
(As,Sb)
 
3
2.AC.10bMertieite-II
Pd
 
8
(Sb,As)
 
3
2.AC.10aStillwaterite
Pd
 
8
As
 
3
2.AC.15bMertieite-I
Pd
 
11
(Sb,As)
 
4
2.AC.15aMiessiite
Pd
 
11
Te
 
2
Se
 
2
2.AC.20bPalarstanide
Pd
 
8
(As,Sn)
 
3
2.AC.20aStibiopalladinite
Pd
 
5
Sb
 
2
2.AC.20cMenshikovite
Pd
 
3
Ni
 
2
As
 
3
2.AC.25eMajakite
PdNiAs
2.AC.25aPalladoarsenide
Pd
 
2
As
2.AC.25fPalladobismutharsenide
Pd
 
2
(As,Bi)
2.AC.25cPalladodymite
(Pd,Rh)
 
2
As
2.AC.25bRhodarsenide
(Rh,Pd)
 
2
As
2.AC.25dNaldrettite
Pd
 
2
Sb
2.AC.30UM1999-02-As:NiRh
(Rh,Ni)
 
7
As
 
4
2.AC.30Polkanovite
Rh
 
12
As
 
7
2.AC.35aGenkinite
(Pt,Pd,Rh)
 
4
Sb
 
3
2.AC.35bUngavaite
Pd
 
4
Sb
 
3
2.AC.40Polarite
Pd(Bi,Pb)
2.AC.45cBorishanskiite
Pd
 
1+x
(As,Pb)
 
2
, x = 0-0.2
2.AC.45aFroodite
α-PdBi
 
2
2.AC.45bIridarsenite
(Ir,Ru)As
 
2
Related Minerals - Hey's Index Grouping:

- +
3.12.1Seinäjokite
(Fe,Ni)(Sb,As)
 
2
3.12.2Laurite
RuS
 
2
3.12.3Ruthenarsenite
(Ru,Ni)As
3.12.4Anduoite
(Ru,Os)As
 
2
3.12.5Ruarsite
(Ru,Os)AsS
3.12.6Xingzhongite
(Pb,Cu,Fe)(Ir,Pt,Rh)
 
2
S
 
4
3.12.7Rhodplumsite
Rh
 
3
Pb
 
2
S
 
2
3.12.8Cuprorhodsite
(Cu,Fe)Rh
 
2
S
 
4
3.12.9Konderite
Cu
 
3
Pb(Rh,Pt,Ir)
 
8
S
 
16
3.12.10Bowieite
(Rh,Ir,Pt)
 
2
S
 
3
3.12.11Cherepanovite
RhAs
3.12.12Hollingworthite
(Rh,Pt,Pd)AsS
3.12.13Vysotskite
(Pd,Ni)S
3.12.14Vasilite
(Pd,Cu)
 
16
(S,Te)
 
7
3.12.15Palladseite
Pd
 
17
Se
 
15
3.12.16Oosterboschite
(Pd,Cu)
 
7
Se
 
5
3.12.17Telluropalladinite
Pd
 
9
Te
 
4
3.12.18Temagamite
Pd
 
3
HgTe
 
3
3.12.19Sopcheite
Ag
 
4
Pd
 
3
Te
 
4
3.12.20Michenerite
PdBiTe
3.12.21Kotulskite
Pd(Te,Bi)
 
1-2
3.12.22Telargpalite
(Pd,Ag)
 
3
(Te,Bi)
3.12.23Merenskyite
(Pd,Pt)(Te,Bi)
 
2
3.12.24Palladoarsenide
Pd
 
2
As
3.12.25Stillwaterite
Pd
 
8
As
 
3
3.12.26Atheneite
Pd
 
2
As
 
0.75
Hg
 
0.25
3.12.27Majakite
PdNiAs
3.12.28Palarstanide
Pd
 
8
(As,Sn)
 
3
3.12.29Arsenopalladinite
Pd
 
8
(As,Sb)
 
3
3.12.30Vincentite
Pd
 
3
As
3.12.31Palladobismutharsenide
Pd
 
2
(As,Bi)
3.12.32Stibiopalladinite
Pd
 
5
Sb
 
2
3.12.33Hexatestibiopanickelite
(Pd,Ni)(Sb,Te)
3.12.34Sudburyite
(Pd,Ni)Sb
3.12.35Testibiopalladite
PdTe(Sb,Te)
3.12.36Borovskite
Pd
 
3
SbTe
 
4
3.12.38Mertieite-I
Pd
 
11
(Sb,As)
 
4
3.12.39Mertieite-II
Pd
 
8
(Sb,As)
 
3
3.12.40Sobolevskite
PdBi
3.12.41Froodite
α-PdBi
 
2
3.12.42Polarite
Pd(Bi,Pb)
3.12.43Urvantsevite
Pd(Bi,Pb)
 
2
3.12.44Cooperite
PtS
3.12.45Braggite
(Pt,Pd,Ni)S
3.12.46Kharaelakhite
(Cu,Pt,Pb,Fe,Ni)
 
9
S
 
8
3.12.47Malanite
Cu(Pt
3+
 
,Ir
3+
 
)
 
2
S
 
4
3.12.48Moncheite
(Pt,Pd)(Te,Bi)
 
2
3.12.49Maslovite
PtBiTe
3.12.50Sperrylite
PtAs
 
2
3.12.51Platarsite
(Pt,Rh,Ru)AsS
3.12.52Geversite
PtSb
 
2
3.12.53Daomanite
CuPtAsS
 
2
3.12.54Genkinite
(Pt,Pd,Rh)
 
4
Sb
 
3
3.12.55Stumpflite
Pt(Sb,Bi)
3.12.56Insizwaite
Pt(Bi,Sb)
 
2
3.12.57Erlichmanite
OsS
 
2
3.12.58Omeiite
(Os,Ru)As
 
2
3.12.59Osarsite
(Os,Ru)AsS
3.12.60Kashinite
(Ir,Rh)
 
2
S
 
3
3.12.61Inaglyite
Cu
 
3
Pb(Ir,Pt)
 
8
S
 
16
3.12.62Cuproiridsite
(Cu,Fe)Ir
 
2
S
 
4
3.12.63Iridarsenite
(Ir,Ru)As
 
2
3.12.64Irarsite
(Ir,Ru,Rh,Pt)AsS
3.12.65Tolovkite
IrSbS

Other Names for Isomertieite

Synonyms:
GuangliniteIMA1973-057
Other Languages:
German:Isomertieit
Simplified Chinese:等轴砷锑钯矿
Spanish:Isomertieita
Varieties:
Fengluanite

Other Information

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

References for Isomertieite

Reference List:

- +
American Mineralogist: 59: 1330.

American Mineralogist (1983): 68: 851.

Clark, A.M., Criddle, A.J. & Fejer, E.E. (1974): Palladium arsenide-antimonides from Itabira, Minas Gerais, Brazil. Mineralogical Magazine, 39, 528-543.

Internet Links for Isomertieite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Isomertieite details from Handbook of Mineralogy (PDF)
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  • Localities for Isomertieite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Brazil
     
    • Minas Gerais
      • Iron Quadrangle
    Min.Mag.(1974) 39, 528-543
    MinMag 66:327-336; Kwitko, R., Cabral, A. R., Lehmann, B., Laflamme, J. G., Cabri, L. J., Criddle, A. J., & Galbiatti, H. F. (2002). Hongshiite, PtCu, from itabirite-hosted Au–Pd–Pt mineralization (jacutinga), Itabira district, Minas Gerais, Brazil. The Canadian Mineralogist, 40(2), 711-723.
        • Mariana (Marianna de Itacolumy)
          • Passagem de Mariana District
    Varajão, C. A. C., Colin, F., Vieillard, P., Melfi, A. J., & Nahon, D. (2000). Early weathering of palladium gold under lateritic conditions, Maquiné Mine, Minas Gerais, Brazil. Applied Geochemistry, 15(2), 245-263.
        • Santa Bárbara
    App.EarthSci 111:74 -- 80.
    • Pará
      • Carajás mineral province
        • Curionópolis
    Canadian Mineralogist Vol. 40, pp. 1451-1463
    http://pubs.nrc-cnrc.gc.ca/mineral/tcm-145140-5.html
    Canada
     
    • Ontario
      • Thunder Bay District
    ontariominerals.com; CanMin 22:233-237
    Canadian Mineralogist, Vol.22, pp. 125-136 (1984); D. H. Watkinson and G. Dunning v(1979) Geology and platinum-group mineralization, Lac-des-Iles Complex, northwestern Ontario. Can Mineral 17:453-462
        • Marathon
    Mulja & Mitchell (1990)
    Mulja, T. & Mitchell, R.H. (1990) Platinum-group minerals and tellurides from the Geordi Lake intrusion, Coldwell complex, Northwestern Ontario. Canadian Mineralogist 28, 489-501.
    Can. Min. 30, 121; Watkinson, D.H. and Ohnenstetter, D. (1992) Hydrothermal origin of platinum-group mineralization in the Two Duck Lake intrusion, Coldwell Complex, northwestern Ontario. Canadian Mineralogist, 30, 121-136.
    China
    [var: Fengluanite] American Mineralogist, Volume 65, pages 406-408, 1980
    • Hebei Province
      • Chengde Prefecture
        • Fengning Co.
    Yu Zuxiang (1982): Bull. Institute of Geology, Chinese Academy of Geological Sciences, 4, 78–81.; Yu Zuxiang, Lin Shujen, Chao Pao, Fang Chingsung, and Huang Chishun (1974): Acta Geologica Sinica 48(2), 202-218; Bilun Luo (1979): Geology and Prospecting 15(3), 11-15
    [var: Fengluanite] Yu Zuxiang, Lin Shujen, Chao Pao, Fang Chingsung, and Huang Chishun (1974): Acta Geologica Sinica 48(2), 202-218
    [var: Fengluanite] Bilun Luo (1979): Geology and Prospecting 15(3), 11-15
    Finland
     
    Törnroos Ragnar, Johanson Bo, Kojonen Kari, 1998. Alluvial nuggets of platinum group minerals and alloys from Finnish Lapland. Geological survey of Finland, Special Paper
      • Inari
        • Lemmenjoki
    33rd International Geological Congress (2008) session MPM-04 Platinum-group mineralogy: Pt-Pd selenides from river placers, northern Finland; Kari K. Kojonen, Andrew M. McDonald, Chris J. Stanley, and Bo Johanson (2011) Törnroosite, Pd11As2Te2, A New Mineral Species Related to Isomertieite from Miessijoki, Finnish Lapland, Finland. Can Mineral 49:1643-1651
      • Penikat complex
    Econ Geol (1986) 81:1126-1136
      • Portimo complex
    Econ Geol (1986) 81:1236-1241
    Greece
     
    • Epirus Department (Ipeiros)
      • Pindos Mtn
        • Pindos ophiolite complex
    Argyrios Kapsiotis, Tassos A. Grammatikopoulos, Basilios Tsikouras and Konstantinos Hatzipanagiotou (2010): Platinum-Group Mineral Characterization in Concentrates from High-Grade PGE Al-rich Chromitites of Korydallos Area in the Pindos Ophiolite Complex (NW Greece). Resource Geology 60, 178-191.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Bleida
    El Ghorfi, M., Oberthür, T., Melcher, F., Lüders, V., El Boukhari, A., Maacha, L., Ziadi, R., and Baoutoul, H. (2006): Mineralium Deposita 41, 549-564.
    Russia
     
    • Eastern-Siberian Region
      • Sakha Republic (Saha Republic; Yakutia)
        • Aldan Shield
    http://gsa.confex.com/gsa/2003AM/finalprogram/abstract_64355.htm
      • Taymyrskiy Autonomous Okrug
        • Taimyr Peninsula
          • Putoran Plateau
    Econ Geol (1986) 81:1203-1212; Goldschmidt Conference Abstracts (2011) Mineralogical Magazine p1893
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Chiney massif
    Can Min (2002) 40, (2), 679-692
    • Far-Eastern Region
      • Chukotskii Autonomous Okrug
        • Kolyma area
          • Bol'shoi Anyui River Basin
            • Baimka River
              • Aluchinskii Massif (Aluchin horst)
    Gornostayev, S.S., Crocket, J.H., Mochalov, A.G., and Lajoki, K.V.O. (1999) The platinum-group minerals of the Baimka placer deposits, Aluchin horst, Russian Far East. Canadian Mineralogist: 37: 1117-1129.
    • Northern Region
      • Karelia Republic
        • Northern Karelia
          • Oulanka plutonic complex
            • Olanga River (Oulanka River)
    Grishaenko, M. V. P., & Federation, R. (2007). Independent Report on the Shalozerskoe (Burakovsky), Lukkulaisvaara and Tsipringa Platinum, Palladium, Copper, Nickel Deposits in the Autonomous Republic of Karelia Russian Federation
    South Africa
     
    • Limpopo Province
    www.bgr.de/b423/oberthuer_ptconf_pgm_bushveld.pdf.
    UK
     
    • England
      • Devon
        • South Devon
          • Torquay
    [Camm, 1995, 71 - "Gold in the Counties of Cornwall and Devon"]; Mineralogical Magazine 1982 46 : 371-377; C. J. Stanley, A. J. Criddle and D. Lloyd (1990) Precious and Base Metal Selenide Mineralization at Hope's Nose, Torquay, Devon. Mineralogical Magazine 54:485-493
    • Scotland
      • North West Highlands (Inverness-shire)
        • Isle of Rum
    Power, M.R., Pirrie, D., Andersen, J.C.O., and Butcher, A.R. (2000): Mineralium Deposita 35, 762-775.
    USA
     
    • Alaska
      • Prince of Wales-Outer Ketchikan Borough
        • Ketchikan District
          • Prince of Wales Island
            • Kasaan Peninsula
    Econ Geol(1992) 87:185-184; US Geological Survey, 2005, Alaska Resource Data File (ARDF)
    • Minnesota
      • Lake Co.
        • Beaver Bay
          • Beaver Bay Complex
    Chusi Li, Ripley, E.M., Oberthür, T., Miller, Jr., J.D., and Joslin, G.D. (2008): Mineralium Deposita 43, 97-110.
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