Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (10 online) Mindat Auctions

Irarsite

Big Photo

Tumet river, Assosa region, Wallaga (Welega; Wollega; Ouallega) Province, Ethiopia
© Pavel M. Kartashov

Formula:
(Ir,Ru,Rh,Pt)AsS
Hardness:6½


Hollingworthite-Irarsite Series.

Classification of Irarsite

IMA status:Approved
Strunz 8th edition ID:2/D.18-60
Nickel-Strunz 10th (pending) edition ID: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 edition ID:2.12.3.7

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
Hey's CIM Ref.:3.12.64

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
mindat.org URL:http://www.mindat.org/min-2042.html
Please feel free to link to this page.

Type Occurrence of Irarsite

Type Locality:Onverwacht Mine, Lydenburg District, Eastern Bushveld Complex, Mpumalanga Province, South Africa
Year of Discovery:1966

Physical Properties of Irarsite

Hardness (Mohs):6½

Chemical Properties of Irarsite

Formula:
(Ir,Ru,Rh,Pt)AsS
Essential elements:As, Ir, S
All elements listed in formula:As, Ir, Pt, Rh, Ru, S
Common Impurities:Os,Fe

Relationship of Irarsite to other Species

Series:Forms a series with Hollingworthite (see here)
Related Minerals - Nickel-Strunz Grouping):
2.EB.05Aurostibite
AuSb
 
2
2.EB.05Bambollaite
Cu(Se,Te)
 
2
2.EB.05Cattierite
CoS
 
2
2.EB.05Erlichmanite
OsS
 
2
2.EB.05Fukuchilite
Cu
 
3
FeS
 
8
2.EB.05Geversite
PtSb
 
2
2.EB.05Hauerite
MnS
 
2
2.EB.05Insizwaite
Pt(Bi,Sb)
 
2
2.EB.05Krut'aite
CuSe
 
2
2.EB.05Laurite
RuS
 
2
2.EB.05Penroseite
(Ni,Co,Cu)Se
 
2
2.EB.05Pyrite
FeS
 
2
2.EB.05Sperrylite
PtAs
 
2
2.EB.05Trogtalite
CoSe
 
2
2.EB.05Vaesite
NiS
 
2
2.EB.05Villamanínite
(Cu,Ni,Co,Fe)S
 
2
2.EB.05Dzharkenite
FeSe
 
2
2.EB.05Gaotaiite
Ir
 
3
Te
 
8
2.EB.10Ferroselite
FeSe
 
2
2.EB.10Frohbergite
FeTe
 
2
2.EB.10Hastite
CoSe
 
2
2.EB.10Kullerudite
NiSe
 
2
2.EB.10Marcasite
FeS
 
2
2.EB.10Mattagamite
CoTe
 
2
2.EB.15Alloclasite
(Co
 
0.65
Fe
 
0.35
)AsS - CoAsS
2.EB.15Anduoite
(Ru,Os)As
 
2
2.EB.15Clinosafflorite
(Co,Fe,Ni)As
 
2
2.EB.15Costibite
CoSbS
2.EB.15Krutovite
NiAs
 
2
2.EB.15Löllingite
FeAs
 
2
2.EB.15Nisbite
NiSb
 
2
2.EB.15Omeiite
(Os,Ru)As
 
2
2.EB.15Paracostibite
CoSbS
2.EB.15Pararammelsbergite
NiAs
 
2
2.EB.15Rammelsbergite
NiAs
 
2
2.EB.15Safflorite
(Co,Fe)As
 
2
2.EB.15Seinäjokite
(Fe,Ni)(Sb,As)
 
2
2.EB.15Oenite
CoSbAs
2.EB.20Arsenopyrite
FeAsS - (Fe
 
0.90
Co
 
0.10
)AsS
2.EB.20Glaucodot
(Fe
 
0.65
Co
 
0.35
)AsS - (Co
 
0.65
Fe
 
0.35
)AsS
2.EB.20Gudmundite
FeSbS
2.EB.20Osarsite
(Os,Ru)AsS
2.EB.20Paxite
CuAs
 
2
2.EB.20Ruarsite
(Ru,Os)AsS
2.EB.25Cobaltite
CoAsS
2.EB.25Gersdorffite
NiAsS
2.EB.25Hollingworthite
(Rh,Pt,Pd)AsS
2.EB.25Jolliffeite
NiAsSe
2.EB.25Maslovite
PtBiTe
2.EB.25Michenerite
PdBiTe
2.EB.25Padmaite
PdBiSe
2.EB.25Platarsite
(Pt,Rh,Ru)AsS
2.EB.25Testibiopalladite
PdTe(Sb,Te)
2.EB.25Tolovkite
IrSbS
2.EB.25Ullmannite
NiSbS
2.EB.25Willyamite
(Co,Ni)SbS
2.EB.25Changchengite
IrBiS
2.EB.25Mayingite
IrBiTe
2.EB.25Hollingsworthite
2.EB.25Kalungaite
PdAsSe
2.EB.25Milotaite
PdSbSe
2.EB.30Urvantsevite
Pd(Bi,Pb)
 
2
2.EB.35Rheniite
ReS
 
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,Hg)
 
3
As
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
Ni(Te,Sb)
3.12.34Sudburyite
(Pd,Ni)Sb
3.12.35Testibiopalladite
PdTe(Sb,Te)
3.12.36Borovskite
Pd
 
3
SbTe
 
4
3.12.37Isomertieite
Pd
 
11
Sb
 
2
As
 
2
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
(Pt,Pd,Ni)S
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
3.12.65Tolovkite
IrSbS

Other Names for Irarsite

Synonyms:
IMA1966-028
German names:
Irarsit
Russian names:
Ирарсит
Spanish names:
Irarsita

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 Irarsite

Reference List:American Mineralogist: 52: 1580.

American Mineralogist (1976): 61: 186.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 95(6): 700-712.

Internet Links for Irarsite

Search Engines:
  • Look for Irarsite on Google
  • Look for Irarsite images on Google
    • External Links:
  • Look for Irarsite on Webmineral
  • Look for Irarsite on Athena Mineralogy
  • Look for Irarsite on Wikipedia
  • Look for Irarsite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Irarsite in the Natural History Museum (London) online catalogue
  • Irarsite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Lapis Mineral Magazin
  • Wendel Minerals - Auktion & Shop
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • e-Rocks - Mineral Auctions and Sales
  • Search for Irarsite on minvision.com
  • Search for Irarsite at Thames Valley Minerals
  • Top quality minerals from Kristalle of California
  • Buy fine minerals and gemstones from Pala International
  • Buy from David K Joyce minerals
  • The Arkenstone - Fine Minerals
  • Buy Fine Minerals from mineralsweb.com
  • Rare and Unusual minerals at Mineralogical Research Company
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Irarsite

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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.
    Austria
     
    • Styria
      • Leoben
    		Min.& Pet. 73:247-277
    Brazil
     
    • North Region
      • Amapá
        • Mazagão
          • Vila Nova
    		CanMin 39:377-396
    Bulgaria
     
    • Blagoevgrad Oblast
      • Rhodope Mts
        • Gotse Delchev
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Canada
     
    • British Columbia
      • Similkameen Mining Division
        • Princeton
    		Alfredo Petrov collection
        • Tulameen River
    		Alfredo Petrov collection
    • Ontario
      • Kenora District
        • Kenora
    		Ref.: R.J. Traill 1983
    China
     
    • Hebei Province
      • Chengde Prefecture
        • Luan River (Luan He) valley
    		Yu Zuxiang (1995): Acta Mineralogica Sinica 15(1), 1-4.; Yu Zuxiang (1995): Acta Geologica Sinica 69(3), 215-220.
    Yu Zuxiang (1995): Acta Mineralogica Sinica 15(1), 5-8.
    Yu Zuxiang (1997): Acta Geologica Sinica 71(4), 486-490.
    • Tibet Autonomous Region
      • Nagchu (Naqu) Prefecture
        • Amdo (Anduo) Co.
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Ethiopia
     
    • Wallaga (Welega; Wollega; Ouallega) Province
      • Assosa region
    		Pavel M. Kartashov data
    Finland
     
    • Itä-Suomen Lääni
    		No reference listed
    • Lapin (Lapland) Lääni
      • Penikat complex
        • Sompujärvi Reef
    		No reference listed
    • Oulun (Oulu) Lääni
      • Nivala
    		K.K. Kojonen et al.: Can. Mineral. 42:539-544 (2004)
    Greece
     
    • Macedonia Department
      • Kozáni Prefecture
        • Kozáni and Grevena prefectures border area
          • Vourinos Mt ophiolite complex
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Japan
     
    • Hokkaido Island
      • Sorachi Province
        • Uryuu-gun
          • Uryugawa
    		Urashima et al (1982) Reports of the Faculty of Science, Kagoshima University, 31, 129-140.
    Urashima et al (1982) Reports of the Faculty of Science, Kagoshima University, 31, 129-140.
    Papua New Guinea
     
    • Northern Province (Oro Province)
      • Ioma area
    		Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, pp. 510.
    Russia
     
    • Eastern-Siberian Region
    		www.cosis.net/abstracts/EAE03/14099/EAE03-A-14099.pdf.
      • Saha Republic (Sakha Republic; Yakutia)
    		[World of Stones 12:49]
      • Tuva Republic
        • Sayan Mts
    		No reference listed
    • Far-Eastern Region
      • Chukot Peninsula
        • Chukotka (Tchukotka) Okrug
          • Pekul'nei Range
            • Northern Pekul'nei River
      • Kamchatka Oblast'
    		[CanMin 38 p1251-1264 "The association of platinum-group minerals in placers of the Pustaya River, Kamchatka, Russia"]
    • Northern Region
      • Karelia Republic
        • Oulanka plutonic complex
          • Olanga (Oulanka) River
    		A. Yu. Barkov et al. , Eur. J. Mineral. , 1996, 8, pp. 311-316.
    • Urals Region
      • Central Urals
      • Southern Urals
        • Chelyabinsk Oblast'
    		[AmMin 84:195]
    South Africa
     
    • Eastern Cape Province
      • Transkei
        • Pondoland
          • Insizwa
    		Minerals of South Africa
    • Free State Province
    		Minerals of South Africa
    • KwaZulu-Natal Province
      • Bushveld Complex
    		Minerals of South Africa
    • Limpopo Province
    		www.bgr.de/b423/oberthuer_ptconf_pgm_bushveld.pdf.
    Minerals of South Africa
    Minerals of South Africa
    • Mpumalanga Province
      • Eastern Bushveld Complex
        • Lydenburg District
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Minerals of South Africa
        • Potgietersrus
    		Minerals of South Africa
    • Northwest Province
      • Western Bushveld Complex
        • Brits District
    		Minerals of South Africa
    Minerals of South Africa
        • Rustenburg District
    		Minerals of South Africa
    Spain
     
    • Andalusia
      • Málaga
        • Ojén
    		Mineralogy and Petrology: 56: 25-50.
    Sweden
     
    • Västerbotten
      • Norsjö
    		No reference listed
    UK
     
    • Scotland
      • Dumfries & Galloway (Wigtownshire)
        • Newton Stewart
    		MinMag 68(2):395-411
      • Shetland Islands
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    USA
     
    • Alaska
      • Bethel Borough
        • Goodnews Bay
          • Salmon River - Red Mountain District
    		USGS Open-File Report 01-269
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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. If you would like to add information to improve the quality of our database, then click here to register.