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Selenolaurite

A valid IMA mineral species
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Formula:
RuSe2
Colour:
gray
Lustre:
Metallic
Specific Gravity:
8.415 (Calculated)
Crystal System:
Isometric
Name:
for its relation with laurite
Isostructural with:
Laurite
The Se analogue of laurite. Unique combination of elements.

Note: most likely identical with 'Unnamed (Ru Selenide)'.

The limited data available on the composition of selenolaurite and Se-bearing laurite from four known localities indicate the presence of a miscibility gap between laurite and selenolaurite.


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Unique IdentifiersHide

Mindat ID:
55041
Long-form identifier:
mindat:1:1:55041:3

IMA Classification of SelenolauriteHide

Classification of SelenolauriteHide

Strunz-mindat (2026):
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.

Mineral SymbolsHide

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

SymbolSourceReference for Standard
SlrtIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of SelenolauriteHide

Lustre:
Metallic
Transparency:
Opaque
Colour:
Gray
Streak:
Black
Comment:
Mohs hardness is lower than that of native osmium (6–7) and higher than that of moncheite (2–3).
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Density:
8.415 g/cm3 (Calculated)

Optical Data of SelenolauriteHide

Bireflectance:
none
Reflectivity:
WavelengthR1 (%)
470nm45.8%
546nm44.3%
589nm43.8%
650nm43.1%


Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 45.8%.
Colour in reflected light:
grey
Internal Reflections:
none

Chemistry of SelenolauriteHide

Mindat Formula:
RuSe2
Element Weights:
Element% weight
Se60.975 %
Ru39.025 %

Calculated from ideal end-member formula.
Elements listed:
Ru, Se - search for minerals with similar chemistry

Crystallography of SelenolauriteHide

Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Pa3
Setting:
Pa3
Cell Parameters:
a = 5.9424(2) Å
Unit Cell V:
209.84 ų (Calculated from Unit Cell)
Z:
4
Comment:
No single-crystal X-ray studies were performed because of lacking of a sufficient amount of the material.

X-Ray Powder DiffractionHide

Type Occurrence of SelenolauriteHide

Synonyms of SelenolauriteHide

Other Language Names for SelenolauriteHide

Related Minerals - Strunz-mindat GroupingHide

2.EB.AndrieslombaarditeRhSbSIso. 2 3 : P21 3
2.EB.Iridarsenite(Ir,Ru)As2Mon. 2/m : P21/b
2.EB.Kanatzidisite(SbBiS3)2Te2Mon. 2/m : P21/m
2.EB.05aVaesiteNiS2Iso. m3 (2/m 3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3 (2/m 3) : Pa3
2.EB.05aLauriteRuS2Iso. m3 (2/m 3) : Pa3
2.EB.05aGaotaiiteIr3Te8Iso. m3 (2/m 3) : Pa3
2.EB.05aPenroseite(Ni,Co,Cu)Se2Iso. m3 (2/m 3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
2.EB.05aVillamanínite(Cu,Ni,Co,Fe)S2Tric.
2.EB.05aErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3 (2/m 3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aCattieriteCoS2Iso. m3 (2/m 3) : Pa3
2.EB.05aAurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aTrogtaliteCoSe2Iso. m3 (2/m 3) : Pa3
2.EB.05a v'Cayeuxite'
2.EB.05aKruťaiteCuSe2Iso. m3 (2/m 3) : Pa3
2.EB.05aPyriteFeS2Iso. m3 (2/m 3) : Pa3
2.EB.05aInsizwaitePtBi2Iso. m3 (2/m 3) : Pa3
2.EB.05bBambollaiteCu(Se,Te)2Tet.
2.EB.05aDzharkeniteFeSe2Iso. m3 (2/m 3) : Pa3
2.EB.10aMarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10eParacostibiteCoSbSOrth. mmm (2/m 2/m 2/m) : Pbca
2.EB.10fOeniteCoSbAsOrth.
2.EB.10ePararammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pbca
2.EB.10aMattagamiteCoTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aPetříčekiteCuSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aKulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15bSeinäjokiteFeSb2Orth.
2.EB.15aRammelsbergiteNiAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15cPaxiteCuAs2Mon. 2/m : P21/b
2.EB.15aNisbiteNiSb2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aLöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aSafflorite(Co,Ni,Fe)As2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aOmeiite(Os,Ru)As2Orth.
2.EB.15aAnduoite(Ru,Os)As2Orth.
2.EB.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20Ruarsite(Ru,Os)AsSMon.
2.EB.20Osarsite(Os,Ru)AsSMon.
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.25MayingiteIrBiTeIso. m3 (2/m 3) : Pa3
2.EB.25MaslovitePtBiTeIso. 2 3 : P21 3
2.EB.25ParagersdorffiteNi(As,S)2Iso. m3 (2/m 3) : Pa3
2.EB.25OrthogersdorffiteNiAsSOrth. mm2 : Pca21
2.EB.25SulfopadmaitePdBiSIso. 2 3 : P21 3
2.EB.25JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GuixiangiteNiBiSIso. 2 3 : P21 3
2.EB.25TestibiopalladitePdSbTeIso.
2.EB.25 va'Antimony-bearing Gersdorffite'Ni(As,Sb)S
2.EB.25KalungaitePdAsSeIso. m3 (2/m 3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3) : Pa3
2.EB.25MicheneritePdBiTeIso. 2 3 : P21 3
2.EB.25GersdorffiteNiAsSIso. 2 3 : P21 3
2.EB.25MilotaitePdSbSeIso. 2 3 : P21 3
2.EB.25TolovkiteIrSbSIso.
2.EB.25'Platarsite'Pt(As,S)2Iso. m3 (2/m 3) : Pa3
2.EB.25WillyamiteCoSbS
2.EB.25ChangchengiteIrBiSIso. 2 3 : P21 3
2.EB.25KvačekiteNiSbSeIso. 2 3 : P21 3
2.EB.25KrutoviteNiAs2Iso. 2 3 : P21 3
2.EB.25PadmaitePdBiSeIso. 4 3 2
2.EB.25UllmanniteNiSbSIso. 2 3 : P21 3
2.EB.25Irarsite(Ir,Ru,Rh,Pt)AsSIso. m3 (2/m 3) : Pa3
2.EB.30UrvantsevitePd(Bi,Pb)2Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
2.EB.35RheniiteReS2Tric. 1 : P1

Other InformationHide

Magnetism:
Non-Magnetic
Notes:
Selenolaurite is insoluble in cool concentrated HCl.
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 SelenolauriteHide

References for SelenolauriteHide

Localities for SelenolauriteHide

Showing 4 localities.

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.
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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.
Russia
 
  • Chelyabinsk Oblast
    • Bredinsky District
      • Gogino
E.V. et al. (2025)
    • Chebarkulsky District
      • Nepryakhino
doi.org (n.d.) +2 other references
  • Murmansk Oblast
    • Serpentinite Belt
E.V. et al. (2025)
  • Tuva
    • Kaa-Khemsky District
      • Kaakhem ophiolite belt
E.V. et al. (2025)
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