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Thalcusite

Formula:
Tl
 
2
Cu
 
3
FeS
 
4
System:TetragonalColour:Gray
Hardness:2½ - 3
Name:The name reflects its composition: thallium, copper (latin "cuprum") and sulfur.


Thalcusite-Sabatierite Group

Classification of Thalcusite

IMA status:Approved 1975
Strunz 8th edition ID:2/F.04-30
Nickel-Strunz 10th (pending) edition ID:2.BD.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
D : With Hg, Tl
Dana 8th edition ID:2.5.5.1

2 : SULFIDES
5 : AmBnXp, with (m+n):p = 3:2
Hey's CIM Ref.:3.5.16

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
5 : Sulphides etc. of Hg and Tl
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Type Occurrence of Thalcusite

Type Locality:Mayak Mine (Majak Mine), Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taimyr Autonomous Region (Taymyrskiy Okrug), Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai), Eastern-Siberian Region, Russia
Year of Discovery:1976

Physical Properties of Thalcusite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Gray
Hardness (Mohs):2½ - 3

Crystallography of Thalcusite

Crystal System:Tetragonal
Cell Parameters:a = 3.88Å, c = 13.25Å
Ratio:a:c = 1 : 3.415
Unit Cell Volume:V 199.47 ų (Calculated from Unit Cell)

Chemical Properties of Thalcusite

Formula:
Tl
 
2
Cu
 
3
FeS
 
4
Essential elements:Cu, Fe, S, Tl
All elements listed in formula:Cu, Fe, S, Tl
Common Impurities:K,Pb,Cr,Sb,As

Relationship of Thalcusite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.BD.05Imiterite
Ag
 
2
HgS
 
2
2.BD.10Gortdrumite
(Cu,Fe)
 
6
Hg
 
2
S
 
5
2.BD.15Balkanite
Cu
 
9
Ag
 
5
HgS
 
8
2.BD.15Danielsite
(Cu,Ag)
 
14
HgS
 
8
2.BD.20Donharrisite
Ni
 
8
Hg
 
3
S
 
9
2.BD.25Carlinite
Tl
 
2
S
2.BD.30Bukovite
Tl
 
2
(Cu,Fe)
 
4
Se
 
4
2.BD.30Murunskite
K
 
2
Cu
 
3
FeS
 
4
2.BD.35Rohaite
Cu
 
5
TlSbS
 
2
2.BD.40Chalcothallite
Tl
 
2
(Cu,Fe)
 
6
SbS
 
4
2.BD.45Sabatierite
Cu
 
6
TlSe
 
4
2.BD.50Crookesite
(Cu,Tl,Ag)
 
2
Se
2.BD.55Brodtkorbite
Cu
 
2
HgSe
 
2
Related Minerals - Hey's Index Grouping:

- +
3.5.1Cinnabar
HgS
3.5.2Hypercinnabar
HgS
3.5.3Metacinnabar
HgS
3.5.4Imiterite
Ag
 
2
HgS
 
2
3.5.5Tiemannite
HgSe
3.5.6Balkanite
Cu
 
9
Ag
 
5
HgS
 
8
3.5.7Danielsite
(Cu,Ag)
 
14
HgS
 
8
3.5.8Coloradoite
HgTe
3.5.9Gortdrumite
(Cu,Fe)
 
6
Hg
 
2
S
 
5
3.5.10Polhemusite
(Zn,Hg)S
3.5.11Carlinite
Tl
 
2
S
3.5.12Crookesite
(Cu,Tl,Ag)
 
2
Se
3.5.13Sabatierite
Cu
 
6
TlSe
 
4
3.5.14Picotpaulite
TlFe
 
2
S
 
3
3.5.15Raguinite
TlFeS
 
2
3.5.17Bukovite
Tl
 
2
(Cu,Fe)
 
4
Se
 
4
3.5.18Gallite
CuGaS
 
2
3.5.19Roquesite
CuInS
 
2
3.5.20Indite
FeIn
 
2
S
 
4

Other Names for Thalcusite

Synonyms:
IMA1975-023
Other Languages:
German:Thalcusit
Spanish:Thalcusita

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 Thalcusite

Reference List:Kovalenker V.A., Laputina I.P., Evstigneeva T.L., Izoitko V.M. (1976): Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 105: 202-206.

Kovalenker V.A., Laputina I.P., Semenov Y.E., Evstigneeva T.L. (1978): Doklady Akademii Nauk SSSR: 239: 1203-1206.

American Mineralogist (1977): 62: 396.

Makovický E., Johan Z., Karup-Møller S. (1980): Neues Jahrbuch für Mineralogie, Abhandlungen: 138: 122-146.

Dobrovolskaya M.G., Malov V.S., Rogova V.P., Vyalsov L.N. (1982): Doklady Akademii Nauk SSSR: 267: 1214-1217.

Mookherjee A., Mozgova N.N., Golonova T.I., Mishra B. (1984): Neues Jahrbuch für Mineralogie, Monatshefte: 1984: 444-454.

American Mineralogist (1994): 79: 1211.

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    Localities for Thalcusite

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    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
     
    • Catamarca
      • Andalgalá
    		Paar, W., Roberts, A.C., Topa, D., Zagler, G., Berlepsch, P., Armbruster, Th. (2004): Putzite, (Cu4.7 Ag3.3)GeS6, a new mineral species from Capillitas, Catamarca, Argentina: description and crystal structure. Canadian Mineralogist: 42: 1757-1769.
    Canada
     
    • Québec
      • Rouville Co.
        • Mont Saint-Hilaire
    		Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Ilimaussaq complex
          • Kangerdluarssuq (Kangerdluarsuk) Firth
    		Karup-Moeller, S., Makovicky E. (2001): Thalcusite from Nakkaalaaq, the Ilimaussaq alkaline complex, South Greenland, South Greenland, Geology of Greenland Survey Bulletin, 190, 127-130
    Karup-Moeller, S., Makovicky E. (2001): Thalcusite from Nakkaalaaq, the Ilimaussaq alkaline complex, South Greenland, South Greenland, Geology of Greenland Survey Bulletin, 190, 127-130
    Karup-Moeller, S., Makovicky E. (2001): Thalcusite from Nakkaalaaq, the Ilimaussaq alkaline complex, South Greenland, South Greenland, Geology of Greenland Survey Bulletin, 190, 127-130
    Karup-Moeller, S., Makovicky E. (2001): Thalcusite from Nakkaalaaq, the Ilimaussaq alkaline complex, South Greenland, South Greenland, Geology of Greenland Survey Bulletin, 190, 127-130
    India
     
    • Rajasthan (Rajputana)
      • Udaipur Division
        • Udaipur District
          • Rajpura-Dariba
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Russia
     
    • Eastern-Siberian Region
      • Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai)
        • Taimyr Autonomous Region (Taymyrskiy Okrug)
          • Taimyr Peninsula
            • Putoran Plateau
              • Noril'sk
    		No reference listed
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Torgo River Basin
            • Davan
              • Chara River (Charo River)
    		[Lapis 1993:4 p.13-20]
    Sweden
     
    • Småland
      • Jönköping
        • Gränna
    		No reference listed
    Switzerland
     
    • Wallis (Valais)
      • Binn Valley
        • Im Feld (Imfeld; Feld; Fäld)
    		aufschluss 2005 Guastoni, A., & De Battisti, L., 2006. Thalcusite. Un altro minerale di tallio scoperto a Lengenbach, Valle di Binn, Svizzera. Rivista Mineralogica Italiana, 30 (1), 54-55.
    Mineral and/or Locality
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