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Isomertieite

A valid IMA mineral species
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About IsomertieiteHide

Formula:
Pd11Sb2As2
Colour:
Pale yellow in reflected light
Lustre:
Metallic
Hardness:
Specific Gravity:
10.33 (Calculated)
Crystal System:
Isometric
Name:
Named for being the isometric dimorph of pseudomertieite, which itself was previously named mertieite-I. The root name is for John Beaver Mertie, Jr. (22 January 1888, Baltimore, Maryland, USA - 7 December 1980, Rockville, Maryland, USA), geologist with the United States Geological Survey who spent 30 years geologically mapping Alaska.
Dimorph of:
This page provides mineralogical data about Isomertieite.


Unique IdentifiersHide

Mindat ID:
2055
Long-form identifier:
mindat:1:1:2055:4
GUID
(UUID V4):
4bc5a46e-0973-4b2f-8f6d-0a59fa1a5e50

IMA Classification of IsomertieiteHide

Classification of IsomertieiteHide

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

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
IsmIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
IsmThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of IsomertieiteHide

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

Optical Data of IsomertieiteHide

Anisotropism:
Weak
Reflectivity:
WavelengthR1R2
400nm43.2%30.8%
420nm44.1%31.5%
440nm45.5%32.6%
460nm47.2%34.2%
470nm48.2%35.15%
480nm49.15%36.2%
500nm51.2%38.4%
520nm53.1%40.3%
540nm54.75%42.0%
546nm55.2%42.4%
560nm56.2%43.5%
580nm57.4%44.8%
589nm58.0%45.4%
600nm58.55%46.0%
620nm59.4%46.9%
640nm60.1%47.6%
650nm60.3%47.9%
660nm60.5%48.15%
680nm60.8%48.45%
700nm61.1%48.75%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 61.1%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Pale yellow-white

Chemistry of IsomertieiteHide

Mindat Formula:
Pd11Sb2As2
Common Impurities:
Au,Cu

Crystallography of IsomertieiteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Setting:
Fd3m
Cell Parameters:
a = 12.283 Å
Unit Cell V:
1,853.16 ų (Calculated from Unit Cell)
Z:
16

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014175IsomertieiteShi N, Ma Z, Zhang N, Ding X (1978) Crystal structure of isomertieite (fengluanite) Kexue Tongbao 23 499-50119780293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.356 Å(90)
2.167 Å(100)
1.533 Å(70)
1.446 Å(60)
1.253 Å(70)
1.188 Å(70)
0.996 Å(70)
Comments:
Sample from Itabira, Brazil.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])
Stage 4b: Highly evolved igneous rocks>3.0
37 : Layered igneous intrusions and related PGE minerals

Type Occurrence of IsomertieiteHide

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.
Geological Setting of Type Material:
In heavy-metal concentrates from Precambrian iron-precious metal deposits.
Associated Minerals at Type Locality:
Reference:
Clark, A.M., Criddle, A.J., Fejer, E.E. (1974) Palladium arsenide-antimonides from Itabira, Minas Gerais, Brazil. Mineralogical Magazine: 39: 528-543.

Synonyms of IsomertieiteHide

Other Language Names for IsomertieiteHide

Simplified Chinese:等轴砷锑钯矿
Spanish:Isomertieita

Varieties of IsomertieiteHide

FengluaniteAn antimony-rich variety of Isomertieite.

Relationship of Isomertieite to other SpeciesHide

Other Members of this group:
MiessiitePd11Te2Se2Iso. m3m (4/m 3 2/m) : Fd3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
4 photos of Isomertieite associated with Caysichite-(Y)(Ca,Yb,Er)4Y4(Si8O20)(CO3)6(OH) · 7H2O
3 photos of Isomertieite associated with MertieitePd8Sb2.5As0.5
2 photos of Isomertieite associated with GoldAu
1 photo of Isomertieite associated with ArsenopalladinitePd8(As,Sb)3
1 photo of Isomertieite associated with BorniteCu5FeS4
1 photo of Isomertieite associated with FuchsiteK(Al,Cr)3Si3O10(OH)2
1 photo of Isomertieite associated with Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
1 photo of Isomertieite associated with PseudomertieitePd11(Sb,As)4
1 photo of Isomertieite associated with ZincochromiteZnCr2O4
1 photo of Isomertieite associated with NipalarsiteNi8Pd3As4

Related Minerals - Strunz-mindat GroupingHide

2.AC.TörnroositePd11As2Te2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.VadlazarenkovitePd8Bi1.5Te1.25As0.25Trig. 3m (3 2/m) : R3c
2.AC.05aAtheneitePd2As0.75Hg0.25Hex. 6 m2 : P62m
2.AC.05bVincentitePd3AsMon.
2.AC.10cArsenopalladinitePd8(As,Sb)3Tric. 1 : P1
2.AC.10bMertieitePd8Sb2.5As0.5Trig. 3m (3 2/m) : R3c
2.AC.10aStillwateritePd8As3Trig.
2.AC.15bPseudomertieitePd11(Sb,As)4Hex.
2.AC.15aMiessiitePd11Te2Se2Iso. m3m (4/m 3 2/m) : Fd3m
2.AC.20bPalarstanidePd5(Sn,As)2Hex.
2.AC.20aStibiopalladinitePd5Sb2Hex.
2.AC.20cMenshikovitePd3Ni2As3Hex. 6/m : P63/m
2.AC.25eMajakitePdNiAsHex.
2.AC.25aPalladoarsenidePd2AsMon. 2/m : P2/m
2.AC.25fPalladobismutharsenidePd2(As,Bi)Orth.
2.AC.25cPalladodymite(Pd,Rh)2AsOrth. mmm (2/m 2/m 2/m) : Pnma
2.AC.25bRhodarsenide(Rh,Pd)2AsOrth.
2.AC.25dNaldrettitePd2SbOrth. mm2 : Cmc21
2.AC.30UM1999-02-As:NiRh(Rh,Ni)7As4
2.AC.30PolkanoviteRh12As7Hex. 6/m : P63/m
2.AC.35aGenkinitePt4Sb3Tet. 4 2 2
2.AC.35bUngavaitePd4Sb3Tet. 4 2 2 : P41 21 2
2.AC.40PolaritePd(Bi,Pb)Orth. mm2 : Cmc21
2.AC.45aFrooditeα-PdBi2Mon. 2/m : B2/m
2.AC.50NipalarsiteNi8Pd3As4Iso. m3m (4/m 3 2/m)
2.AC.50ViteitePd5InAsTet. 4/mmm (4/m 2/m 2/m) : P4/mmm

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 IsomertieiteHide

References for IsomertieiteHide

Reference List:

Localities for IsomertieiteHide

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 +3 other references
  • Minas Gerais
    • Barão de Cocais
App.EarthSci 111:74 -- 80. +1 other reference
Mineralogical Magazine (1974)
MinMag 66:327-336 +1 other reference
    • Mariana
      • Passagem de Mariana district
Varajão et al. (2000)
  • Pará
    • Curionópolis
Canadian Mineralogist Vol. 40
Teixeira (2014)
Cabral et al. (2002) +5 other references
Canada
 
  • British Columbia
    • Kamloops Mining Division
      • Kamloops
Robb (2020)
  • Ontario
    • Kenora District
      • Ring of Fire
        • BMA527861 Area
N Farhangi
    • Thunder Bay District
Mulja & Mitchell (1990)
Ames et al. (2017)
Good et al. (2017)
      • Lac des Iles Area
Louis J. Cabri and J.H. Gilles Laflamme (1979) +2 other references
D. H. Watkinson and G. Dunning v (1979) +1 other reference
Canadian Mineralogist 30:121-136
      • O'Neill Township
5th International Platinum Symposium ... +1 other reference
      • Seeley Lake Area
Mulja et al. (1990)
China
 
  • Hebei
    • Chengde
      • Fengning County
        • Boluonuo
Zuxiang Yu et al. (1974) +2 other references
Yu Zuxiang et al. (1974)
      • Luanping County
        • Tiema-Habaqin complex
Bilun Luo (1979)
Finland
 
Törnroos Ragnar
    • Enontekiö
Kojonen et al. (2007) +4 other references
    • Inari
      • Ivalojoki
Kari Kojonen (2012)
Kojonen et al. (2014)
    • Penikat complex
5th International Platinum Symposium ... +1 other reference
Econ Geol (1986)
    • Portimo complex
Iljina +1 other reference
Papunen (1986)
    • Rovaniemi
Guice et al. (2017) +1 other reference
    • Sodankylä
      • Viiankiaapa mire area
Pelayo Barrón Francisco (2020)
France
 
  • Provence-Alpes-Côte d'Azur
    • Bouches-du-Rhône
      • Aix-en-Provence
        • Peyrolles-en-Provence
Y. Moëlo : "Compte-rendu de la ... +1 other reference
Greece
 
  • Central Macedonia
    • Chalkidiki
      • Aristotelis
        • Kassandra mining district
Katie A. McFall et al. (2018)
  • Thessaly
    • Trikala
      • Meteora
Argyrios Kapsiotis et al. (2010)
India
 
  • Karnataka
    • Davanagere District
      • Shimoga schist belt
Alapieti et al. (2005)
Madagascar
 
  • Betsiboka
    • Maevatanana District
      • Morafeno Commune
Econ Geol (1994) +1 other reference
Morocco
 
  • Drâa-Tafilalet Region
    • Zagora Province
      • Zagora Cercle
        • Tinzouline Caïdat
          • Bleida Mines
El Ghorfi et al. (2006)
Myanmar
 
  • Sagaing Region
    • Monywa District
5th International Platinum Symposium ... +1 other reference
Russia
 
  • Chukotka Autonomous Okrug
    • Bilibinsky District
      • Kolyma area
        • Bol'shoi Anyui River Basin
          • Baimka River
            • Aluchinskii Massif (Aluchin horst)
Gornostayev et al. (1999)
  • Khabarovsk Krai
    • Ayan-Maya district
Lennikov et al. (2004)
Barkov et al. (2016) +1 other reference
  • Komi Republic
    • Kozhim River Basin
      • Maldynyrd range (Maldy-nyrd range)
Moralev et al. (2005)
  • Krasnoyarsk Krai
    • Maimecha and Kotui Rivers Basin
Malitch et al. (2013)
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Putoran Plateau
Econ Geol (1986) +1 other reference
[AmMin 85:265]
  • Murmansk Oblast
    • Fedorovo-Pansky massif (Pana layered complex)
Groshev +7 other references
www.duke.edu (2003)
Grokhovskaya et al. (2009)
Grokhovskaya et al. (2019)
    • Monchegorsk
[AmMin 65:198] +2 other references
Grokhovskaya et al. (2000) +1 other reference
  • Republic of Karelia
    • Kondopozhsky District
- (2014)
    • Loukhsky District
      • Oulanka plutonic complex
        • Olanga River (Oulanka River)
Grishaenko et al. (2007)
  • Sakha
Geological Society of America Abstracts ... +1 other reference
  • Sverdlovsk Oblast
    • Kachkanar
      • Kachkanar Complex
        • Kachkanarskoe
Stepanov et al. (2023)
    • Nizhnii Tagil
      • Volkovskii Cu-Fe-V-Au-Pd complex
Stepanov et al. (2023)
  • Yamalo-Nenets Autonomous Okrug
    • Labytnangi
Murzin et al. (2022)
  • Zabaykalsky Krai
    • Chiney massif
Barkov et al. (2002)
South Africa
 
... +1 other reference
  • Limpopo
    • Waterberg District Municipality
      • Mogalakwena Local Municipality
        • Mogalakwena
          • Mokopane
Armitage et al. (2002)
Manyeruke (2007)
UK
 
  • England
    • Devon
      • Torbay
        • Torquay
Mineralogical Magazine 1982 46 : 371-377 +2 other references
  • Scotland
    • Highland
      • Caol and Mallaig
        • Isle of Rum
Power et al. (2000)
USA
 
  • Alaska
    • Prince of Wales-Hyder Census Area
      • Ketchikan Mining District
        • Prince of Wales Island
          • Kasaan Peninsula
Econ Geol (1992) +1 other reference
  • Minnesota
    • Lake County
      • Beaver Bay
        • Beaver Bay Complex
Chusi Li et al. (2008)
Zimbabwe
 
  • Midlands
    • Shurugwi District
Oberthür et al. (2013)
 
Mineral and/or Locality  
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