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About KrutoviteHide

Georgy A. Krutov and Oleg V. Kononov
Crystal System:
Named in honor of Georgy Alekseevich Krutov (Георгий Алексеевич Крутов) (24 April 1902, Lytinko, Solnechnogorsk, Moscow, Russian Empire - 11 December 1989, USSR), Professor, Department of Mineralogy, Moscow State University. He specialized in the field of geology, mineralogy, and geochemistry of nickel-cobalt. He was awarded the 1961 A.E. Fersman prize.
Probably a member of the Pyrite Group (Strunz and Nickel, 2001). Synthetic NiAs2 has a pyrite-type structure (Munson, 1968).

Classification of KrutoviteHide

Approval Year:
First Published:

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.

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

Physical Properties of KrutoviteHide

5½ on Mohs scale

Optical Data of KrutoviteHide

440(64.7,65.4) 460(63,8,64.0) 500(64.7,65.0) 540(65.7,65.8) 580(66.2,66.7) 620(66.3,66.8) 660(66.2,66.8) 700(66.2,66.8) 740(66.0,66.8) 780(66.0,66.8) 820(66.3,67.1) 860(66.6,67.5) 900(67.2,68.0) 940(68.0,68.8) 980(69.7,70.3) 1020(71.3,72.1) 1060(73.4,74.0) 1100nmR1=64.0%R2=66.2%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 66.2%.
R1 shown in black, R2 shown in red
Colour in reflected light:
bright white with rose tint, compared to nickel skutterudite

Chemical Properties of KrutoviteHide

Common Impurities:

Crystallography of KrutoviteHide

Crystal System:
Cell Parameters:
a = 5.79 Å
Unit Cell V:
194.10 ų (Calculated from Unit Cell)

Type Occurrence of KrutoviteHide

General Appearance of Type Material:
grains intergrown with ore
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Science, Moscow, Russia.
Mining Institute, St. Petersburg, Russia.
National Museum, Prague, Czech Republic, 61625.
Vinogradova, R.A., N.S. Rudashevskii, I.A. Bud’ko, L.I. Bochek, P. Kaspar, K. Padera (1976) Krutovite – a new cubic nickel diarsenide. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 105(1): 59–71 (in Russian).

Synonyms of KrutoviteHide

Other Language Names for KrutoviteHide


Common AssociatesHide

Associated Minerals Based on Photo Data:
Quartz1 photo of Krutovite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.EB.05aAurostibiteAuSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aCattieriteCoS2Iso. m3 (2/m 3) : Pa3
2.EB.05aErlichmaniteOsS2Iso. m3 (2/m 3) : Pa3
2.EB.05aFukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
2.EB.05aGeversitePtSb2Iso. m3 (2/m 3) : Pa3
2.EB.05aHaueriteMnS2Iso. m3 (2/m 3) : Pa3
2.EB.05aKrut'aiteCuSe2Iso. m3 (2/m 3) : Pa3
2.EB.05aLauriteRuS2Iso. m3 (2/m 3) : Pa3
2.EB.05aPenroseite(Ni,Co,Cu)Se2Iso. m3 (2/m 3) : Pa3
2.EB.05aPyriteFeS2Iso. m3 (2/m 3) : Pa3
2.EB.05aSperrylitePtAs2Iso. m3 (2/m 3) : Pa3
2.EB.05aVaesiteNiS2Iso. m3 (2/m 3) : Pa3
2.EB.10bAlloclasiteCo1-xFexAsSMon. 2 : P21
2.EB.10dCostibiteCoSbSOrth. mm2 : Pmn21
2.EB.10aFerroseliteFeSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aFrohbergiteFeTe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10cGlaucodot(Co0.50Fe0.50)AsSOrth. mm2 : Pmn21
2.EB.10aKulleruditeNiSe2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.10aMarcasiteFeS2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aClinosaffloriteCoAs2Mon. 2/m : P21/m
2.EB.15aLöllingiteFeAs2Orth. mmm (2/m 2/m 2/m) : Pnnm
2.EB.15aRammelsbergiteNiAs2Orth. 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.20ArsenopyriteFeAsSMon. 2/m : P21/b
2.EB.20GudmunditeFeSbSMon. 2/m : P21/b
2.EB.25CobaltiteCoAsSOrth. mm2 : Pca21
2.EB.25GersdorffiteNiAsSIso. m3 (2/m 3) : Pa3
2.EB.25Hollingworthite(Rh,Pt,Pd)AsSIso. m3 (2/m 3)
2.EB.25JolliffeiteNiAsSeIso. m3 (2/m 3) : Pa3
2.EB.25MaslovitePtBiTeIso. 2 3 : P21 3
2.EB.25MicheneritePdBiTeIso. 2 3 : P21 3
2.EB.25UllmanniteNiSbSIso. 2 3 : P21 3
2.EB.25MayingiteIrBiTeIso. m3 (2/m 3) : Pa3
2.EB.25KalungaitePdAsSeIso. m3 (2/m 3) : Pa3
2.EB.25MilotaitePdSbSeIso. 2 3 : P21 3

Related Minerals - Dana Grouping (8th Ed.)Hide m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3,Co,Cu)Se2Iso. m3 (2/m 3) : Pa3,Ni,Co,Fe)S2 m3 (2/m 3) : Pa3'aiteCuSe2Iso. m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3,Sb)2 m3 (2/m 3) : Pa3 m3 (2/m 3) : Pa3

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.

References for KrutoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Munson, R.A. (1968) The synthesis of iridium disulfide and nickel diarsenide having the pyrite structure. Inorganic Chemistry: 7: 389-390.
Holseth, H. and Kjekshus, A. (1968) Compounds with the marcasite type crystal structure. I. Compositions of the binary pnictides. Acta Chemica Scandinavica: 22: 3273-3283.
Vinogradova, R.A., Rudashevskii, N.S., Bud’ko, I.A., Bochek, L.I., Kaspar, P., and Padera, K. (1976) Krutovite – a new cubic nickel diarsenide. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 105(1): 59–71 (in Russian).
Vinogradova, R.A., Rudashevskii, N.S., Bochek, L.I., and Bud’ko, I.A. (1976) First discovery of krutovite in the USSR. Doklady Acad. Nauk SSSR: 230: 938–941 (in Russian).
Fleischer, M. and Mandarino, J.A. (1977) New mineral names. American Mineralogist: 62: 173-176.
Spiridonov, E.M. and Chvileva, T.N. (1995) The boundary between gersdorffite NiAsS and krutovite NiAs2. Doklady Akad. Nauk: 341(6): 785–787 (English translation in Trans. Russ. Acad. Sci., Earth Sci. Sect., 344(7), 119–123).
Jambor, J.L. and Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 400-403.
Strunz, H. and Nickel, E. H. (2001) Strunz Mineralogical Tables. E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germany, 870 pp.
Ondruš, P., Veselovský, F., Gabašová, A., Hloušek, J., Šrein, V., Vavrín, I., Skála, R., Sejkora, J., and Drábek, M. (2003) Primary minerals of the Jáchymov ore district. Journal of the Czech Geological Society: 48: 19-147.
Hem, S.R. and Makovicky, E. (2004) The system Fe-Co-Ni-As-S. II. Phase relations at in the (Fe,Co,Ni)As1.5S0.5 section at 650° and 500°C. The Canadian Mineralogist: 42: 63-86.

Internet Links for KrutoviteHide

Localities for KrutoviteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Bahia
    • Maracás
      • Rio Jacaré layered complex
Campbell, R. A. (2012). Platinum Group Element (PGE) Mineralization Associated with Fe-Ti-V Deposit, Rio Jacaré Intrusion, Bahia State, Brazil. Bachelors honour thesis Dalhousie University, Halifax Nova Scotia
Czech Republic (TL)
  • Karlovy Vary Region
    • Karlovy Vary District
      • Horní Blatná
[ZVMO,(1976) 105, 59-71,71-85; Nickel & Nichols, 1991]
Lapis 2002(7/8), 63-65
Sehrig, M. & Dietel, J. (2011): Silber, Uran, Arsen und Heilquellen: Auf Mineraliensuche in Jáchymov, einem der ältesten Bergwerke der Welt. Lapis 36 (7-8), 67-71; 86.
  • Hesse
    • Odenwald
      • Mühltal
        • Nieder-Ramstadt
PETITJEAN collection
  • Adygea
Pavel M. Kartashov data; Pekov, I.V., Levitskiy, V.V., Krivovichev, S.V., Zolotarev, A.A., Bryzgalov, I.A., Zadov, A.E. & Chukanov, N.V. (2012): New nickel-uranium-arsenic mineral species from the oxidation zone of the Belorechenskoye deposit, Northern Caucasus, Russia: I. Rauchite, Ni(UO2)2(AsO4)2.10H2O, a member of the autunite group. European Journal of Mineralogy, 24, 913-922.
  • Orenburg Oblast
    • Gay
Zaikov, V.V., and Melekestseva, I.Y. (2006): Geology of Ore Deposits 48(3), 151-174.
  • Tuva
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
  • Košice Region
    • Rožňava Co.
Chovan M. & Ozdín D., 2003: Chemical composition of Ni, Co and Fe sulphoarsenides and arsenides in siderite veins in the Western Carpathians (Slovakia). Acta Min.-Petr., Abstract Series 1 (Szeged), 1, 19.
Števko M., Sejkora J., Litochleb J., Macek I., Bačík P., 2013: Krutovit a sprievodné minerály z lokality Dobšiná-Teliatko (Slovenská republika). Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha), 21, 1, 1-14 (in Slovak with English abstract).
      • Dobšiná mining district (Dobschau; Topschau)
Martin Števko-unpublished, PXRD and EMPA-WDS confirmed
  • Žilina Region
    • Liptovský Mikuláš Co.
Ozdin D., Chovan M., 1999: New mineralogical and paragenetic knowledge about siderite veins in the vicinity of Vyšná Boca, Nízke Tatry Mts. Slov. Geol. Magazine, Bratislava, 5, 4, 255-271
Ozdín D. & Chovan M., 1999: New mineralogical and paragenetic knowledge about siderite veins in the vicinity of Vyšná Boca, Nízke Tatry Mts. Slovak Geological Magazine, 5, 4, 255-271.
  • Valais
    • Anniviers Valley
      • Ayer
Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
Mineral and/or Locality  
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