Krutovite (original) (raw)

A valid IMA mineral species

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About KrutoviteHide

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Specific Gravity:

7.10 (Calculated)

Name:

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).

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:2280:0

a59ae02f-cff9-4fe3-a8a4-5fa89ec68595

IMA Classification of KrutoviteHide

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Type description reference:

Classification of KrutoviteHide

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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.

2.12.1.12

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

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

Physical Properties of KrutoviteHide

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Hardness:

VHN100=719 - Vickers

Density:

7.10(2) g/cm3 (Calculated)

Optical Data of KrutoviteHide

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Reflectivity:

Wavelength R1 R2
440nm 64.0% 66.2%
460nm 64.7% 65.4%
500nm 63.8% 64.0%
540nm 64.7% 65.0%
580nm 65.7% 65.8%
620nm 66.2% 66.7%
660nm 66.3% 66.8%
700nm 66.2% 66.8%
740nm 66.2% 66.8%
780nm 66.0% 66.8%
820nm 66.0% 66.8%
860nm 66.3% 67.1%
900nm 66.6% 67.5%
940nm 67.2% 68.0%
980nm 68.0% 68.8%
1020nm 69.7% 70.3%
1060nm 71.3% 72.1%
1100nm 73.4% 74.0%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 74.0%.
R1 shown in black, R2 shown in red

Colour in reflected light:

bright white with rose tint, compared to nickel skutterudite

Chemistry of KrutoviteHide

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Common Impurities:

Co,Fe,Cu,Sb,S

Crystallography of KrutoviteHide

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Class (H-M):

23 - Tetartoidal

Cell Parameters:

a = 5.79 Å

Unit Cell V:

194.10 ų (Calculated from Unit Cell)

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0012675 Krutovite Munson R A (1968) The synthesis of iridium disulfide and nickel diarsenide having the pyrite structure Inorganic Chemistry 7 389-390 1968 synthetic 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
2.593 Å (10)
2.365 Å (8)
1.746 Å (8)
2.897 Å (6)
1.548 Å (6)
1.0242 Å (6)
2.051 Å (5)

Geological EnvironmentHide

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Type Occurrence of KrutoviteHide

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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.

Associated Minerals at Type Locality:

Reference:

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

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Other Language Names for KrutoviteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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2.EB. Iridarsenite (Ir,Ru)As2 Mon. 2/m : _P_21/b
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 FeSb2 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 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 KrutoviteHide

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Reference List:

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).

Ondruš, P., Veselovský, F., Gabašová, A., Hloušek, J., Šrein, V., Vavrín, I., Skála, R., Sejkora, J., Drábek, M. (2003) Primary minerals of the Jáchymov ore district. Journal of the Czech Geological Society: 48: 19-147.

Localities for KrutoviteHide

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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.

Brazil
Bahia Maracás Rio Jacaré layered complex ⓘ Maracás Menchen mine Campbell (2012)
Czech Republic
Karlovy Vary Region Karlovy Vary District ⓘ Jáchymov Lapis 2002 (7/8)
ⓘ Svornost Mine 86. +1 other reference
Potůčky ⓘ Potůčky Deposit (TL) Nickel & Nichols +1 other reference
Germany
Hesse Darmstadt Darmstadt-Dieburg Mühltal Nieder-Ramstadt ⓘ Wingertsberg Quarry PETITJEAN collection
Poland
Lower Silesian Voivodeship Jawor County Gmina Męcinka Chełmiec ⓘ Hintermühlergang vein Muszyński et al. (2023)
Russia
Adygea (Republic of Adygea) Maykopsky District ⓘ Belorechenskoye deposit Pavel.M. Kartashov (n.d.) +1 other reference
Orenburg Oblast Gay ⓘ Ishkinino Co-Cu deposit Zaikov et al. (2006)
Tuva Chedi-Kholsky District ⓘ Khovu-Aksy Ni-Co deposit Anthony et al. (1990)
Ovyursky District ⓘ Ulatayskoe Ag-Cu-Co occurrence Biagioni et al. (2024)
Slovakia
Banská Bystrica Region Banská Bystrica District Ľubietová ⓘ Kolba Majzlan J. et al. (2022)
Košice Region Rožňava District ⓘ Dobšiná Chovan M. & Ozdín D. et al. (Slovakia)
ⓘ Dobšiná mining district Kiefer et al. (2020)
ⓘ Zemberg-Terézia vein system Martin Števko-unpublished
ⓘ Teliatko serpentinite body Števko M. et al. (Slovenská republika)
Trenčín Region Bánovce nad Bebravou District Čierna Lehota ⓘ Ni-Bi-As occurrence Majzlan et al. (2022)
Žilina Region Liptovský Mikuláš District ⓘ Vyšná Boca Ozdin D.
ⓘ Bruchatý grúnik Ozdín D. & Chovan M.
Spain
Aragon Huesca San Juan de Plan ⓘ San Carlos mine ? Fanlo et al. (2004)
Switzerland
Valais Leuk Turtmann-Unterems Turtmann Valley Pipjitälli ⓘ Co-Ni occurrence Ansermet et al. (2021)
Sierre Anniviers Ayer ⓘ Grand-Praz Mine Ansermet (2012)