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Isomertieite

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Formula:
Pd11Sb2As2
System:
Isometric
Colour:
Pale yellow in reflected ...
Lustre:
Metallic
Hardness:
Name:
For its structural and compositional relationship to mertieite-I.
Dimorph of:
This page provides mineralogical data about Isomertieite.

Classification of Isomertieite

Approved
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
2.16.2.1

2 : SULFIDES
16 : Miscellaneous
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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http://www.mindat.org/min-2055.html
Please feel free to link to this page.

Type Occurrence of Isomertieite

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:

Physical Properties of Isomertieite

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

Crystallography of Isomertieite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
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 Data:
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%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 61.1%.
Colour in reflected light:
Pale yellow-white

Chemical Properties of Isomertieite

Formula:
Pd11Sb2As2
Essential elements:
All elements listed in formula:
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:
(Pd4.88Cu0.12)As1.04Sb0.92
Common Impurities:
Au,Cu

Relationship of Isomertieite to other Species

Other Members of Group:
MiessiitePd11Te2Se2
2.AC.05aAtheneitePd2As0.75Hg0.25
2.AC.05bVincentitePd3As
2.AC.10cArsenopalladinitePd8(As,Sb)3
2.AC.10bMertieite-IIPd8(Sb,As)3
2.AC.10aStillwateritePd8As3
2.AC.15bMertieite-IPd11(Sb,As)4
2.AC.15aMiessiitePd11Te2Se2
2.AC.20bPalarstanidePd8(As,Sn)3
2.AC.20aStibiopalladinitePd5Sb2
2.AC.20cMenshikovitePd3Ni2As3
2.AC.25eMajakitePdNiAs
2.AC.25aPalladoarsenidePd2As
2.AC.25fPalladobismutharsenidePd2(As,Bi)
2.AC.25cPalladodymite(Pd,Rh)2As
2.AC.25bRhodarsenide(Rh,Pd)2As
2.AC.25dNaldrettitePd2Sb
2.AC.30UM1999-02-As:NiRh(Rh,Ni)7As4
2.AC.30PolkanoviteRh12As7
2.AC.35aGenkinite(Pt,Pd,Rh)4Sb3
2.AC.35bUngavaitePd4Sb3
2.AC.40PolaritePd(Bi,Pb)
2.AC.45cBorishanskiitePd1+x(As,Pb)2 , x = 0-0.2
2.AC.45aFrooditeα-PdBi2
2.AC.45bIridarsenite(Ir,Ru)As2
3.12.1Seinäjokite(Fe,Ni)(Sb,As)2
3.12.2LauriteRuS2
3.12.3Ruthenarsenite(Ru,Ni)As
3.12.4Anduoite(Ru,Os)As2
3.12.5Ruarsite(Ru,Os)AsS
3.12.6Xingzhongite(Pb,Cu,Fe)(Ir,Pt,Rh)2S4
3.12.7RhodplumsiteRh3Pb2S2
3.12.8Cuprorhodsite(Cu,Fe)Rh2S4
3.12.9KonderiteCu3Pb(Rh,Pt,Ir)8S16
3.12.10Bowieite(Rh,Ir,Pt)2S3
3.12.11CherepanoviteRhAs
3.12.12Hollingworthite(Rh,Pt,Pd)AsS
3.12.13Vysotskite(Pd,Ni)S
3.12.14Vasilite(Pd,Cu)16(S,Te)7
3.12.15PalladseitePd17Se15
3.12.16Oosterboschite(Pd,Cu)7Se5
3.12.17TelluropalladinitePd9Te4
3.12.18TemagamitePd3HgTe3
3.12.19SopcheiteAg4Pd3Te4
3.12.20MicheneritePdBiTe
3.12.21KotulskitePd(Te,Bi)
3.12.22Telargpalite(Pd,Ag)3(Te,Bi)
3.12.23Merenskyite(Pd,Pt)(Te,Bi)2
3.12.24PalladoarsenidePd2As
3.12.25StillwateritePd8As3
3.12.26AtheneitePd2As0.75Hg0.25
3.12.27MajakitePdNiAs
3.12.28PalarstanidePd8(As,Sn)3
3.12.29ArsenopalladinitePd8(As,Sb)3
3.12.30VincentitePd3As
3.12.31PalladobismutharsenidePd2(As,Bi)
3.12.32StibiopalladinitePd5Sb2
3.12.33Hexatestibiopanickelite(Pd,Ni)(Sb,Te)
3.12.34Sudburyite(Pd,Ni)Sb
3.12.35TestibiopalladitePdTe(Sb,Te)
3.12.36BorovskitePd3SbTe4
3.12.38Mertieite-IPd11(Sb,As)4
3.12.39Mertieite-IIPd8(Sb,As)3
3.12.40SobolevskitePd(Bi,Te)
3.12.41Frooditeα-PdBi2
3.12.42PolaritePd(Bi,Pb)
3.12.43UrvantsevitePd(Bi,Pb)2
3.12.44CooperitePtS
3.12.45Braggite(Pt,Pd,Ni)S
3.12.46Kharaelakhite(Cu,Pt,Pb,Fe,Ni)9S8
3.12.47MalaniteCu(Pt3+,Ir3+)2S4
3.12.48Moncheite(Pt,Pd)(Te,Bi)2
3.12.49MaslovitePtBiTe
3.12.50SperrylitePtAs2
3.12.51PlatarsitePtAsS
3.12.52GeversitePtSb2
3.12.53DaomaniteCuPtAsS2
3.12.54Genkinite(Pt,Pd,Rh)4Sb3
3.12.55StumpflitePt(Sb,Bi)
3.12.56InsizwaitePt(Bi,Sb)2
3.12.57ErlichmaniteOsS2
3.12.58Omeiite(Os,Ru)As2
3.12.59Osarsite(Os,Ru)AsS
3.12.60Kashinite(Ir,Rh)2S3
3.12.61InaglyiteCu3Pb(Ir,Pt)8S16
3.12.62Cuproiridsite(Cu,Fe)Ir2S4
3.12.63Iridarsenite(Ir,Ru)As2
3.12.64Irarsite(Ir,Ru,Rh,Pt)AsS
3.12.65TolovkiteIrSbS

Other Names for Isomertieite

Name in Other Languages:
Simplified Chinese:等轴砷锑钯矿
Spanish:Isomertieita

Other Information

Health Risks:
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

Localities for Isomertieite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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
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
Burma (Myanmar)
 
  • Sagaing Division
    • Monywa District
5th International Platinum Symposium Bulletin of The Geological Society of Finland Number 61, Part 1,1989,1-64
Canada
 
  • Ontario
    • Thunder Bay District
Mulja & Mitchell (1990)
      • Lac des Iles Area
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
      • O'Neill Township
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.; 5th International Platinum Symposium Bulletin of The Geological Society of Finland Number 61, Part 1,1989,1-64
      • Seeley Lake Area
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.
China
[var: Fengluanite] American Mineralogist, Volume 65, pages 406-408, 1980
  • Hebei Province
    • Chengde Prefecture
      • Fengning Co.
        • Boluonuo
Zuxiang Yu, Shuren Lin, Bao Zhao, Qingsong Fang, and Qishun Huang (1974): Acta Geologica Sinica 48(2), 202-218; Bilun Luo (1979): Geology and Prospecting 15(3), 11-15; Zuxiang Yu (1982): Bull. Institute of Geology, Chinese Academy of Geological Sciences, 4, 78–81
[var: Fengluanite] Yu Zuxiang, Lin Shujen, Chao Pao, Fang Chingsung, and Huang Chishun (1974): Acta Geologica Sinica 48(2), 202-218
      • Luanping Co.
        • Tiema-Habaqin complex
[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
Huhtelin, T. A., Alapieti, T. T., & Lahtinen, J. J. (1990). The Paasivaara PGE reef in the Penikat layered intrusion, northern Finland. Mineralogy and Petrology, 42(1-4), 57-70.; 5th International Platinum Symposium Bulletin of The Geological Society of Finland Number 61, Part 1,1989,1-64
Econ Geol (1986) 81:1126-1136
    • Portimo complex
Iljina, M. 1994. The Portimo Layered Igneous Complex - with emphasis on diverse sulphide and platinum-group element deposits. Acta Univ. Oul. A258, 1994
Econ Geol (1986) 81:1236-1241
France
 
  • Provence-Alpes-Côte d'Azur
    • Bouches-du-Rhône
      • Aix-en-Provence
        • Peyrolles-en-Provence
5th International Platinum Symposium Bulletin of The Geological Society of Finland Number 61, Part 1,1989,1-64
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.
Mineral and/or Locality  
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