Iridarsenite (original) (raw)

A valid IMA mineral species

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02426440015379894896045.jpg

About IridarseniteHide

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Specific Gravity:

10.9 (Calculated)

Crystal System:

Monoclinic

Name:

Named for the composition that include IRIDium and ARSENic.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:2044:8

9640c19d-6c83-463d-9e9c-9dc1d6d6c7b0

IMA Classification of IridarseniteHide

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Approval history:

IMA1973-021

Type description reference:

Classification of IridarseniteHide

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2.EB.

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.

2.12.4.5

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2

3.12.63

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

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

Symbol Source Reference
Ird IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of IridarseniteHide

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Pronunciation:

Play Recorded by Country
Sorry, your browser doesn't support HTML5 audio. Jolyon Ralph United Kingdom

Physical Properties of IridarseniteHide

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Hardness:

VHN100=488 - 606 kg/mm2 - Vickers

Density:

10.9 g/cm3 (Calculated)

Optical Data of IridarseniteHide

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Anisotropism:

Weak but distinct

Bireflectance:

Weak to nil.

Reflectivity:

Wavelength R1 R2
470nm 47.2% 46.9%
546nm 45.4% 46.1%
589nm 44.9% 46.6%
650nm 41.4% 44.0%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 47.2%.
R1 shown in black, R2 shown in red

Colour in reflected light:

Medium gray with brownish tint (in oil)

Chemistry of IridarseniteHide

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Mindat Formula:

(Ir,Ru)As2

Common Impurities:

Os,Pt,Rh,Pd,S

Crystallography of IridarseniteHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 6.06 Å, b = 6.07 Å, c = 6.15 Å
β = 113.27°

Ratio:

a:b:c = 0.998 : 1 : 1.013

Unit Cell V:

207.82 ų (Calculated from Unit Cell)

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0011926 Iridarsenite Kjekshus A (1971) On the properties of binary compounds with the CoSb2 type crystal structure Acta Chemica Scandinavica 25 411-422 1971 synthetic 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
3.90 Å (100)
2.840 Å (70)
2.069 Å (60)
2.610 Å (50)
1.910 Å (50)
1.943 Å (40)
1.875 Å (40)

Geological EnvironmentHide

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Type Occurrence of IridarseniteHide

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General Appearance of Type Material:

Inclusions to 60 µm in rutheniridosmine.

Place of Conservation of Type Material:

Geological Survey of Canada, Ontario, Canada, number 12160.
Canadian Museum of Nature, Ottawa, Ontario, Canada.

Associated Minerals at Type Locality:

Reference:

Harris, D.C. (1974) Ruthenarsenite and iridarsenite, two new minerals from the territory of Papua and New Guinea and associated irarsite, laurite and cubic iron-bearing platinum. The Canadian Mineralogist: 12: 280-284.

Synonyms of IridarseniteHide

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Other Language Names for IridarseniteHide

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Relationship of Iridarsenite to other SpeciesHide

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Structurally related to group(s):

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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2.EB. Selenolaurite RuSe2 Iso. m_3(2/m_3) : P _a_3
2.EB. Andrieslombaardite RhSbS Iso. 23 : _P_213
2.EB. Kanatzidisite (SbBiS3)2Te2 Mon. 2/m : _P_21/m
2.EB.05a Aurostibite AuSb2 Iso. m_3(2/m_3) : P _a_3
2.EB.05b Bambollaite Cu(Se,Te)2 Tet.
2.EB.05a Cattierite CoS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Erlichmanite OsS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Fukuchilite Cu3FeS8 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Geversite PtSb2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Hauerite MnS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Insizwaite Pt(Bi,Sb)2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Krut'aite CuSe2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Laurite RuS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Penroseite (Ni,Co,Cu)Se2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Pyrite FeS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Sperrylite PtAs2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Trogtalite CoSe2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Vaesite NiS2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Villamanínite (Cu,Ni,Co,Fe)S2 Tric.
2.EB.05a Dzharkenite FeSe2 Iso. m_3(2/m_3) : P _a_3
2.EB.05a Gaotaiite Ir3Te8 Iso. m_3(2/m_3) : P _a_3
2.EB.05a v Cayeuxite
2.EB.10b Alloclasite Co1-xFexAsS Mon. 2 : _P_21
2.EB.10d Costibite CoSbS Orth. m _m_2 : P m _n_21
2.EB.10a Ferroselite FeSe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10a Frohbergite FeTe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10c Glaucodot (Co0.50Fe0.50)AsS Orth. m _m_2 : P m _n_21
2.EB.10a Kullerudite NiSe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10a Marcasite FeS2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10a Mattagamite CoTe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.10e Paracostibite CoSbS Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
2.EB.10e Pararammelsbergite NiAs2 Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a
2.EB.10f Oenite CoSbAs Orth.
2.EB.10a Petříčekite CuSe2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Anduoite (Ru,Os)As2 Orth.
2.EB.15a Clinosafflorite CoAs2 Mon. 2/m : _P_21/m
2.EB.15a Löllingite FeAs2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Nisbite NiSb2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Omeiite (Os,Ru)As2 Orth.
2.EB.15c Paxite CuAs2 Mon. 2/m : _P_21/b
2.EB.15a Rammelsbergite NiAs2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15a Safflorite (Co,Ni,Fe)As2 Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
2.EB.15b Seinäjokite (Fe,Ni)(Sb,As)2 Orth.
2.EB.20 Arsenopyrite FeAsS Mon. 2/m : _P_21/b
2.EB.20 Gudmundite FeSbS Mon. 2/m : _P_21/b
2.EB.20 Osarsite (Os,Ru)AsS Mon.
2.EB.20 Ruarsite (Ru,Os)AsS Mon.
2.EB.25 va Antimony-bearing Gersdorffite Ni(As,Sb)S
2.EB.25 Cobaltite CoAsS Orth. m _m_2 : P c _a_21
2.EB.25 Gersdorffite NiAsS Iso. m_3(2/m_3) : P _a_3
2.EB.25 Hollingworthite (Rh,Pt,Pd)AsS Iso. m_3(2/m_3) : P _a_3
2.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS Iso. m_3(2/m_3) : P _a_3
2.EB.25 Jolliffeite NiAsSe Iso. m_3(2/m_3) : P _a_3
2.EB.25 Krutovite NiAs2 Iso. 23 : _P_213
2.EB.25 Maslovite PtBiTe Iso. 23 : _P_213
2.EB.25 Michenerite PdBiTe Iso. 23 : _P_213
2.EB.25 Padmaite PdBiSe Iso. 432
2.EB.25 Platarsite Pt(As,S)2 Iso. m_3(2/m_3) : P _a_3
2.EB.25 Testibiopalladite PdSbTe Iso.
2.EB.25 Tolovkite IrSbS Iso.
2.EB.25 Ullmannite NiSbS Iso. 23 : _P_213
2.EB.25 Willyamite CoSbS
2.EB.25 Changchengite IrBiS Iso. 23 : _P_213
2.EB.25 Mayingite IrBiTe Iso. m_3(2/m_3) : P _a_3
2.EB.25 Kalungaite PdAsSe Iso. m_3(2/m_3) : P _a_3
2.EB.25 Milotaite PdSbSe Iso. 23 : _P_213
2.EB.25 Paragersdorffite Ni(As,S)2 Iso. m_3(2/m_3) : P _a_3
2.EB.25 Orthogersdorffite NiAsS Orth. m _m_2 : P c _a_21
2.EB.25 Kvačekite NiSbSe Iso. 23 : _P_213
2.EB.30 Urvantsevite Pd(Bi,Pb)2 Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_4/m m m
2.EB.35 Rheniite ReS2 Tric. 1 : _P_1

Other InformationHide

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Health Risks:

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

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References for IridarseniteHide

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Reference List:

Fleischer, Michael, Pabst, Adolf, Mandarino, Joseph A., Chao, George Y., Cabri, Louis, J. (1976) New Mineral Names. American Mineralogist, 61 (1-2) 174-186

Localities for IridarseniteHide

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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

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- 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.

China
Tibet Nagchu Prefecture (Naqu Prefecture) Amdo Co. (Anduo Co.) ⓘ Anduo Cr deposit Anthony et al. (1990)
Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture) Qusum Co. (Qusong Co.) ⓘ Luobusha ophiolite ("Luobusa ophiolite") Wenji Bai et al. (2007)
Cuba
Holguín Province ⓘ Mejías beach placer Acta Geológica Hispánica et al. (1-4)
Finland
North Ostrobothnia Nivala ⓘ Hitura Nickel Mine Kojonen K: K. (Cu,Fe)
Greece
Thessaly Trikala Meteora ⓘ Pefki Argirios Kapsiotis et al. (2011)
Japan
Hokkaidō Prefecture Rumoi Subprefecture Tomamae District Haboro ⓘ Ainusawa River NISHIO–HAMANE et al. (2022)
Shosanbetsu ⓘ Minamichiyoda NISHIO–HAMANE et al. (2022)
Papua New Guinea (TL)
Oro Province Ioma area ⓘ Waria River (TL) Harris (1974)
Russia
Bashkortostan Uchalinsky District ⓘ Unspecified gold placer Pavel M. Kartashov analytical data 2018
Buryatia Okinsky District Ulan-Sar’dag Ophiolite ⓘ Kitoy River placers Airiyants et al. (2022)
Chelyabinsk Oblast Miass River ⓘ Maly Iremel placer Zaykov et al. (2017)
Krasnoyarsk Krai ⓘ Kingash Alexander V. Dedeev et al (2002)
Western Sayan range ⓘ Zolotaya river placers ? Tolstyk et al. (1997) +1 other reference
Tuva Kaa-Khemsky District Kaakhem ophiolite belt ⓘ Kundus placer Oidup et al. (2012)
Serbia
Central Serbia Rasina District Trstenik Veluće ⓘ Veluce ophiolite complex Krstic et al. (1997)
South Africa
ⓘ Witwatersrand goldfield Cairncross et al. (1995)
USA
Alaska Bethel Census Area Goodnews Bay Salmon River - Red Mountain District ⓘ Dowry Creek mine USGS Open-File Report 01-269 +1 other reference
ⓘ Fox Gulch Fechner SA (1988) +1 other reference
ⓘ Platinum Creek USGS Open-File Report 01-269