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Canfieldite

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Colquechaca, Chayanta Province, Potosí Department, Bolivia
© Rob Lavinsky

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Formula:
Ag
 
8
(Sn,Ge)(S,Te)
 
6
System:OrthorhombicColour:Black
Hardness:2½
Name:For US mining engineer and mineral collector Frederick Alexander Canfield (1849-1926), of Dover, NJ..
This page provides mineralogical data about Canfieldite.

Classification of Canfieldite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/B.08-20
Nickel-Strunz 10th (pending) edition ID:2.BA.70

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
A : With Cu, Ag, Au
Dana 8th edition ID:2.5.6.2

2 : SULFIDES
5 : AmBnXp, with (m+n):p = 3:2
Hey's CIM Ref.:6.2.5

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
2 : Sulphogermanates
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Type Occurrence of Canfieldite

Type Locality:Colquechaca, Chayanta Province, Potosí Department, Bolivia
Year of Discovery:1893

Physical Properties of Canfieldite

Colour:Black
Streak:Greyish black
Hardness (Mohs):2½

Crystallography of Canfieldite

Crystal System:Orthorhombic

Chemical Properties of Canfieldite

Formula:
Ag
 
8
(Sn,Ge)(S,Te)
 
6
Idealised Formula:
Ag
 
8
SnS
 
6
Essential elements:Ag, S, Sn
All elements listed in formula:Ag, Ge, S, Sn, Te
Common Impurities:Ge,Fe,Te

Relationship of Canfieldite to other Species

Series:Forms a series with Argyrodite (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
2.BA.05Chalcocite
Cu
 
2
S
2.BA.05Djurleite
Cu
 
31
S
 
16
2.BA.05Geerite
Cu
 
8
S
 
5
2.BA.05Roxbyite
Cu
 
9
S
 
5
2.BA.10Anilite
Cu
 
7
S
 
4
2.BA.10Digenite
Cu
 
9
S
 
5
2.BA.15Bornite
Cu
 
5
FeS
 
4
2.BA.20Bellidoite
Cu
 
2
Se
2.BA.20Berzelianite
Cu
 
2
Se
2.BA.25Athabascaite
Cu
 
5
Se
 
4
2.BA.25Umangite
Cu
 
3
Se
 
2
2.BA.30Rickardite
Cu
 
7
Te
 
5
2.BA.30Weissite
Cu
 
2-x
Te
2.BA.35Acanthite
Ag
 
2
S
2.BA.35Argentite
2.BA.40Mckinstryite
(Ag,Cu)
 
2
S
2.BA.40Stromeyerite
AgCuS
2.BA.40dUM2003-13
Ag
 
6
AuCu
 
2
S
 
5
2.BA.45Jalpaite
Ag
 
3
CuS
 
2
2.BA.45Selenojalpaite
Ag
 
3
CuSe
 
2
2.BA.50Eucairite
AgCuSe
2.BA.55Aguilarite
Ag
 
4
SeS
2.BA.55Naumannite
Ag
 
2
Se
2.BA.60Cervelleite
Ag
 
4
TeS
2.BA.60Hessite
Ag
 
2
Te
2.BA.65Henryite
Ag
 
3
Cu
 
4
Te
 
4
2.BA.65Stützite
Ag
 
7
Te
 
4
2.BA.70Argyrodite
Ag
 
8
GeS
 
6
2.BA.70Putzite
(Cu
 
4.7
Ag
 
3.3
)GeS
 
6
2.BA.75Fischesserite
Ag
 
3
AuSe
 
2
2.BA.75Penzhinite
(Ag,Cu)
 
4
Au(S,Se)
 
4
2.BA.75Petrovskaite
AuAg(S,Se)
2.BA.75Petzite
Ag
 
3
AuTe
 
2
2.BA.75Uytenbogaardtite
Ag
 
3
AuS
 
2
2.BA.80Bezsmertnovite
(Au,Ag)
 
4
Cu(Te,Pb)
2.BA.80Bilibinskite
PbCuAu
 
3
Te
 
2
2.BA.80Bogdanovite
(Au,Te,Pb)
 
3
(Cu,Fe)
Related Minerals - Hey's Index Grouping:

- +
6.2.1Germanite
Cu
 
13
Fe
 
2
Ge
 
2
S
 
16
6.2.2Briartite
Cu
 
2
(Fe,Zn)GeS
 
4
6.2.3Renierite
(Cu,Zn)
 
11
(Ge,As)
 
2
Fe
 
4
S
 
16
6.2.4Argyrodite
Ag
 
8
GeS
 
6
6.2.6Morozeviczite
(Pb,Fe)
 
3
Ge
 
1-x
S
 
4
6.2.7Polkovicite
(Fe,Pb)
 
3
(Ge,Fe)
 
1-x
S
 
4

Other Names for Canfieldite

Other Languages:
German:Canfieldit
Spanish:Canfieldita
Varieties:
Tellurian Canfieldite

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 Canfieldite

Reference List:Penfield (1894), American Journal of Science: 47: 451.

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: 356-358.

Doklady Akademii Nauk SSSR: 203: 122-125.

Neues Jahrbuch für Mineralogie, Monatshefte (1978): 269-272.

Articles/Blogs about Canfieldite

Internet Links for Canfieldite

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

    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
     
    • Jujuy
      • Rinconada Department
    		Brodtkorb, "Las Especies Minerales de la Republica Argentina" (2002)
    • Salta
      • Organullo Mining District
    		[var: Tellurian Canfieldite]
    Australia
     
    • Tasmania
      • Rossarden district
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    Bolivia
     
    • Potosí Department
      • Chayanta Province
    		[MinRec 32:469]
      • Sud Chichas Province
        • Atocha-Quechisla District
    		[MinRec 32:461]
    [MinRec 32:480
    China
     
    • Fujian Province
      • Nanping Prefecture
        • Jianyang Co.
          • Shuiji Pb-Zn-(Ag) deposit
    		Anthony, J.W. et al.: Handbook of Mineralogy.
    • Liaoning Province (Manchuria; Dongbei Region)
      • Huludao Prefecture
        • Jianchang Co.
    		[var: Tellurian Canfieldite] Li, Y. and Qing, C.K. (1999): Acta Mineralogica Sinica 19, 426–435.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Kutná Hora (Kuttenberg)
    		No reference listed
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    France
     
    • Auvergne
      • Cantal
        • Brioude - Massiac area
          • Massiac
            • Molèdes
    		R. Pierrot, P. Picot, J.J. Périchaud : "Inventaire Minéralogique du Cantal", BRGM and Editions G. de Bussac, 1971
        • Laroquebrou
          • Saint-Santin-Cantalès
    • Brittany
      • Finistère
        • Huelgoat
    		R.PIERROT, L. CHAURIS, C. LAFORET (1973) : "Inventaire minéralogique de la France : 29- Finistère.", B.R.G.M. Paris.
    Germany
     
    • Saxony
      • Erzgebirge
        • Freiberg District
          • Brand-Erbisdorf
    		Hofmann, F. (1986): Die Freiberger Mineralien. LAPIS 11 (7-8), 28-55
    Greece
     
    • Aegean Islands (Aiyaíon) Department
      • Kykládes Prefecture
        • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
          • Tinos Island
    		Tombros, S.F. (2008): Later stages of evolution of an epithermal system: Au-Ag mineralization at Apigania Bay, Tinos, Island, Cyclades, Hellas, Greece. Min.Pet. (in press)
    Greenland
     
    • Kitaa (West Greenland) Province
      • Arsuk
        • Arsuk Firth
          • Ivittuut (Ivigtut)
    		[www.hedegaard.com]
    India
     
    • Haryana
      • Bhiwani District
    		Murao, S., Deb, M., and Furuno, M. (2008): Ore Geology Reviews 33, 490-504.
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Shimane Prefecture
      • Kanto region
        • Tochigi Prefecture
          • Ashio
    		Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.
      • Kinki Region
        • Hyogo Prefecture
          • Shisawa-gun
    		Nakamura, T. & Aikawa,N. (1973) Journal of Geosciences, Osaka City University, 16, 1-10.
    Peru
     
    • Huánuco Department
      • Dos de Mayo Province
        • Huallanca District
    		No reference listed
    Portugal
     
    • Castelo Branco District
      • Covilhã
        • Panasqueira
    		No reference listed
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
    		[Der Aufschluss 1995:4 p163-180]
      • Primorskiy Kray
        • Sikhote-Alin
    Slovakia
     
    • Prešov Region
      • Northern Slanské Mts
    		Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
    USA
     
    • Arizona
      • Cochise Co.
        • Mule Mts
          • Warren District
    		No reference listed
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 153-154, 379.
    • Colorado
      • Lake Co.
        • Leadville District
          • Alicante
            • Iron Hill
    		Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
    • Nevada
      • Lander Co.
        • Lewis District
    		Min.Rec.:20(5):390.
        • McCoy District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
    		Rocks & Minerals. Nov. 1999
    Uzbekistan
     
    • Kyzylkum Desert
      • Central Kyzylkum Region
        • Bel'tau Mts
    Mineral and/or Locality
    Google
     
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