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Isomertieite

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Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia
© Thomas Witzke

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Formula:
Pd
 
11
Sb
 
2
As
 
2
System:IsometricColour:Pale yellow in reflected ...
Lustre:MetallicHardness:5½
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):5½
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
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
(Pt,Cu,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.
    Hide Locality List
    (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
        • 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]  
    • 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
     
    • Lapland Region
      • 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 (Ipeiros) Department
      • Pindos Mts
        • 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
      • Saha Republic (Sakha 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
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Chiney massif
    		Can Min (2002) 40, (2), 679-692
    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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    Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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