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Domeykite

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Cashin Mine, Montrose Co., Colorado, USA
© Brent Thorne

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Formula:
Cu
 
3
As
System:IsometricColour:Tin white - steel grey
Lustre:MetallicHardness:3 - 3½
Name:For the Chilean mineralogist Ignacio Domeyko (1802-1889).
This page provides mineralogical data about Domeykite.

Classification of Domeykite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" 1845
Strunz 8th edition ID:2/A.01-20
Nickel-Strunz 10th (pending) edition ID:2.AA.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
A : Alloys
A : Alloys of metalloids with Cu, Ag, Au
Dana 8th edition ID:2.2.2.1

2 : SULFIDES
2 : AmBnXp, with (m+n):p = 3:1
Hey's CIM Ref.:1.37

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
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Type Occurrence of Domeykite

Type Locality:Los Algodones Mine, El Algodón, El Arrayan, La Serena, Elqui Province, Coquimbo Region, Chile
Year of Discovery:1845

Physical Properties of Domeykite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Tin white - steel grey
Comment:Tarnishes yellowish, then brownish, finally iridescent
Hardness (Mohs):3 - 3½
Hardness (Vickers):VHN100=213 - 235 kg/mm2
Fracture:Irregular/Uneven
Density (measured):7.2 - 7.9 g/cm3
Density (calculated):7.86 g/cm3

Crystallography of Domeykite

Crystal System:Isometric
Class (H-M):4 3m - Hextetrahedral
Space Group:I4 3d
Cell Parameters:a = 9.62Å
Unit Cell Volume:V 890.28 ų (Calculated from Unit Cell)
Z:16
Morphology:Reniform, botyroidal, massive

Optical Data of Domeykite

Type:Isotropic

Chemical Properties of Domeykite

Formula:
Cu
 
3
As
Essential elements:As, Cu
All elements listed in formula:As, Cu
Common Impurities:Sb,S

Relationship of Domeykite to other Species

Related Minerals - Nickel-Strunz Grouping):
2.AA.05Algodonite
(Cu
 
1-x
As
 
x
)
2.AA.10Koutekite
Cu
 
5
As
 
2
2.AA.15Novakite
Cu
 
20
AgAs
 
10
2.AA.20Cuprostibite
Cu
 
2
(Sb,Tl)
2.AA.20Horsfordite
2.AA.25Kutinaite
Cu
 
2
AgAs
2.AA.30Allargentum
(Ag
 
1-x
Sb
 
x
)
2.AA.35Dyscrasite
Ag
 
3
Sb
2.AA.40Maldonite
Au
 
2
Bi
2.AA.45Stistaite
SnSb
Related Minerals - Hey's Index Grouping:
1.1Copper
Cu
1.2Silver
Ag
1.5Gold
Au
1.6Auricupride
Cu
 
3
Au
1.7Tetra-auricupride
AuCu
1.8Zinc
Zn
1.9Cadmium
Cd
1.10Danbaite
CuZn
 
2
1.11Zhanghengite
CuZn
1.12Mercury
Hg
1.13Kolymite
Cu
 
7
Hg
 
6
1.14Moschellandsbergite
Ag
 
2
Hg
 
3
1.15Eugenite
Ag
 
11
Hg
 
2
1.16Schachnerite
Ag
 
1.1
Hg
 
0.9
1.17Paraschachnerite
Ag
 
3
Hg
 
2
1.18Luanheite
Ag
 
3
Hg
1.19Weishanite
(Au,Ag)
 
3
Hg
 
2
1.20Indium
In
1.21Aluminium
Al
1.22Khatyrkite
(Cu,Zn)Al
 
2
1.23Cupalite
(Cu,Zn)Al
1.24Diamond
C
1.25Graphite
C
1.26Chaoite
C
1.27Lonsdaleite
C
1.28Silicon
Si
1.29Tin
Sn
1.30Lead
Pb
1.31Anyuiite
Au(Pb,Sb)
 
2
1.31Novodneprite
AuPb
 
3
1.32Leadamalgam
HgPb
 
2
1.33Arsenic
As
1.34Arsenolamprite
As
1.35Paxite
CuAs
 
2
1.36Koutekite
Cu
 
5
As
 
2
1.38Algodonite
(Cu
 
1-x
As
 
x
)
1.39Novakite
Cu
 
20
AgAs
 
10
1.40Kutinaite
Cu
 
2
AgAs
1.41Antimony
Sb
1.42Stibarsen
AsSb
1.43Paradocrasite
Sb
 
3
As
1.44Horsfordite
1.45Cuprostibite
Cu
 
2
(Sb,Tl)
1.46Allargentum
(Ag
 
1-x
Sb
 
x
)
1.47Aurostibite
AuSb
 
2
1.48Dyscrasite
Ag
 
3
Sb
1.49Bismuth
Bi
1.50Maldonite
Au
 
2
Bi
1.51Sulphur
S
 
8
1.52Rosickýite
S
1.53Selenium
Se
1.54Tellurium
Te
1.55Chromium
Cr
1.56Rhenium
Re
1.57Iron
Fe
1.58Chromferide
Fe
 
3
Cr
 
1-x
 (x=0.6)
1.59Ferchromide
Cr
 
1.5
Fe
 
0.5-x
1.60Wairauite
CoFe
1.61Nickel
Ni
1.62Kamacite
(Fe,Ni)
1.63Taenite
(Fe,Ni)
1.64Tetrataenite
FeNi
1.65Awaruite
Ni
 
3
Fe
1.66Palladium
(Pd,Pt)
1.67Potarite
PdHg
1.68Paolovite
Pd
 
2
Sn
1.69Stannopalladinite
(Pd,Cu)
 
3
Sn
 
2
1.70Cabriite
Pd
 
2
SnCu
1.71Taimyrite
(Pd,Cu,Pt)
 
3
Sn
1.72Atokite
(Pd,Pt)
 
3
Sn
1.73Rustenburgite
(Pt,Pd)
 
3
Sn
1.74Zvyagintsevite
(Pd,Pt,Au)
 
3
(Pb,Sn)
1.75Plumbopalladinite
Pb
 
2
Pd
 
3
1.76Osmium
(Os,Ir,Ru)
1.77Iridium
(Ir,Os,Ru)
1.82Platinum
Pt
1.83Hongshiite
PtCu
1.84Niggliite
PtSn
1.85Isoferroplatinum
Pt
 
3
Fe
1.86Tetraferroplatinum
PtFe
1.87Tulameenite
Pt
 
2
CuFe
1.88Ferronickelplatinum
Pt
 
2
FeNi
1.89Rhodium
(Rh,Pt)

Other Names for Domeykite

Synonyms:
Arsenical Copper
French names:
Arseniure de CuivreCuivre Arsenical
German names:
ArsenikkupferDomeykit
Russian names:
Домейкит
Spanish names:
Domeykita
Varieties:
Argentodomeykite

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 Domeykite

Reference List:Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 172.

Geological Society of America Memoir 85 (1962): 30.

Zeitschrift für Kristallographie: 145 (1977), 334.

Anthony, Bideaux, Bladh & Nichols (1990), Handbook of Mineralogy, Vol. I: 138.

Zapiski Vserossiskogo Mineralogicheskogo Obshchetstva (2002): 131(5), 54.

Canadian Journal of Chemistry: 38: 2477-2481.

Economic Geology: 66: 133-139.

Internet Links for Domeykite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Domeykite in the Natural History Museum (London) online catalogue
  • Domeykite details from Handbook of Mineralogy (PDF)
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    Localities for Domeykite

    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.
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    (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.
    Argentina
     
    • Neuquén
    		Las Especies Minerales de la Republica Argentina, Milka K. de Brodtkorb, Asociacion Mineralogica Argentina 2002
    Austria
     
    • Styria
      • Knittelfeld
        • Flatschach
          • Cu deposit
    		Jarlowsky, W. (1964): Die Kupfererzgänge von Flatschach bei Knittelfeld. Archiv für Lagerstättenforschung in den Ostalpen, 2, 32-75; Paar, W.H. & Meixner, H. (1979): Neues aus den Kupfererz-Gängen des Flatschacher Bergbau-Reviers bei Knittelfeld, Steiermark. Karinthin, 81: 148-150.; Gröbner, J. (2000): Neue Mineralienfunde aus Österreich (2). Mineralien-Welt, 11 (5), 49-51.
    Paar, W.H. & Meixner, H. (1979): Neues aus den Kupfererz-Gängen des Flatschacher Bergbau-Reviers bei Knittelfeld, Steiermark. Karinthin, 81: 148-150.
    Bolivia
     
    • La Paz Department
      • Pacajes Province
    		[MinRec 32:469; Metal Mining Mining Geology, A.I.M.E. (1937): 541-558.]
    Geology and Mineral Resources of the Altiplano and Cordillera Occidental, Bolivia (USGS Bulletin no. 1975)
    Canada
     
    • New Brunswick
      • Gloucester Township
        • Bathurst
    		Sabina (1966) GSC Paper 66-51, 46-47
    • Ontario
      • Thunder Bay District
        • Sibley Township
          • Silver Islet
    		[MinRec 1996]
    Chile
     
    • Atacama Region
      • Copiapó Province
        • Chañarcillo
    		Handb.best.Mineral.(1845) p. 562
        • Potrero Grande
    		I. Domeyko collection Mineralogical Museum in La Serena, Chile; Jochen Schlüter analysis of M. Dini material
    Day G. (1933); "Informe sobre las minas de plata denominadas Guía de Picones y Descubridora de San Antonio de Copiapó": Sernageomin, Stgo de Chile.
    Day G. (1933); "Informe sobre las minas de plata denominadas Guías de Picones y Descubridora de San Antonio de Copiapó": Sernageomin, Stgo de Chile.
    • Coquimbo Region
      • Elqui Province
        • La Serena
          • El Arrayan
            • El Algodón
    		No reference listed
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Hradec Králové Region
        • Náchod (Nachod)
    		Duda, Rejl, Slivka: "Mineralien", 1991
    France
     
    • Auvergne
      • Haute-Loire
        • Brioude - Massiac area
          • Lubilhac
            • Suc de l'Eglise)
    		J.J. Périchaud : "Les Gisements Métalliques du District à Antimoine de Brioude-Massiac (Massif Central Français)", BRGM, 1968
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    		No reference listed
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Guillaumes
          • Daluis
    		R. Pierrot, P. Picot, J. Feraud, J. Vernet : "Inventaire Minéralogique de la France, N° 4, Alpes Maritimes", BRGM, 1974; [MinRec 32:312]; Riviéra Scientific:85:3-12, 2001 (15 Oct 2001), Sarp, et al.
      • Hautes-Alpes
        • Lautaret pass area
    		R. Pierrot, P. Picot, P.A. Poulain, "Inventaire Minéralogique de la France : Hautes-Alpes", BRGM, 1972
    Germany
     
    • Bavaria
      • Franconia
        • Spessart Mts
          • Aschaffenburg
            • Dörrmorsbach
    		A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
          • Hösbach
            • Sailauf
              • Hartkoppe Mt.
    		see locality page
    • Saarland
      • Nonnweiler
        • Kastel
    		G. Müller
    • Schleswig-Holstein
      • Helgoland Island
    		A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Hungary
     
    • Borsod-Abaúj-Zemplén Co.
      • Rudabányai Mts.
        • Rudabánya
    		Szakáll: Minerals of Rudabánya, 2001
    Iran
     
    • Esfahan Province (Isfahan Province; Aspadana Province)
      • Anarak District
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Italy
     
    • Liguria
      • La Spezia Province
        • Rocchetta Vara
    		Palenzona et al., 2002. La geigerite della miniera di Monte Nero (Rocchetta Vara, La Spezia). Riv. Miner. Ital., 2: 75-76.
    New Zealand
     
    • North Island
      • Northland
    		Railton, G.L. & Watters, W.A., Minerals of New Zealand, New Zealand Geological Survey Bull. #104 (1990).
    Russia
     
    • Far-Eastern Region
      • Primorskiy Kray
    		[MinRec 32:8]
    Sweden
     
    • Värmland
      • Filipstad
    		Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
        • Pajsberg
    		No reference listed
    Switzerland
     
    • Vaud (Waadt)
      • Leysin
    		Stalder, H. A., Wagner, A., Graeser, S. und Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf Verlag, Basel, 579 pp.
    UK
     
    • England
      • Cornwall
        • Camborne - Redruth - St Day District
          • Camborne
            • Troon
    		Dana 6:44; Dana 7:I:172.
          • Illogan
            • Pool
    		Lapis 11(2), 23 (1986)
      • Leicestershire
        • Stanton under Bardon
    		UKJMM 26:43-51
    USA
     
    • Colorado
      • Montrose Co.
    		Minerals of Colorado (1997) Eckels, E. B.
    • Michigan
    		www.deq.state.mi.us/documents/deq-glm-rcim-geology-Minerals_Found_In_Michigan.Pdf.
        • Hancock
    		Rocks & Min.:58:109.
        • Houghton
    		Rocks & Min.:58:109.
        • Hurontown
    		Mineralogy of Michigan (2004) Heinrich & Robinson
        • Painesdale
    		Mineralogy of Michigan (2004) Heinrich & Robinson
        • Point Mills
          • Portage Lake
    		Dana 7:I:172.
        • Ripley
      • Keweenaw Co.
        • Ahmeek
    		Rocks & Min.:58:111.
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    USGS PP144
    USGS PP144
    Dana 6:1086.
        • Copper Harbor
    		Mineralogy of Michigan (2004) Heinrich & Robinson
        • Mohawk
    		Rocks & Min.: 21:664.
    Rocks & Min.: 58:111.
        • Phoenix
      • Ontonagon Co.
        • White Pine
    		R&M 74:3 p160-176
        • Winona
    		USGS PP144
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Burke, E.A.J. & Dunn, P.J.: Neues Jahrbuch für Min. Monatshefte(1988):145-148; Dunn(1995):Pt4:545.
    • New Mexico
    		Northrop, Minerals of New Mexico, 3rd rev. ed., 1996
    Minerals of New Mexico 3rd ed.
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    • Utah
      • San Juan Co.
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    Mineral and/or Locality
    Google
     
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