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2½ - 3
Crystal System:
Member of:
The name reflects its composition: thallium, copper (latin "cuprum") and sulfur.
Bukovite Group

"Thalcusite homologous series" is mentioned (see UM2011-13-S:CuTl).

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Classification of ThalcusiteHide

Approval Year:

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

5 : AmBnXp, with (m+n):p = 3:2

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

Physical Properties of ThalcusiteHide

2½ - 3 on Mohs scale

Chemical Properties of ThalcusiteHide

IMA Formula:
Common Impurities:

Crystallography of ThalcusiteHide

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

Type Occurrence of ThalcusiteHide

Synonyms of ThalcusiteHide

Other Language Names for ThalcusiteHide

Simplified Chinese:硫铊铁铜矿
Traditional Chinese:硫鉈鐵銅礦

Relationship of Thalcusite to other SpeciesHide

Member of:
Other Members of this group:

Common AssociatesHide

Associated Minerals Based on Photo Data:
Lafossaite4 photos of Thalcusite associated with Lafossaite on mindat.org.
Polylithionite1 photo of Thalcusite associated with Polylithionite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.BD.15BalkaniteCu9Ag5HgS8Mon. 2/m : P2/m
2.BD.20DonharrisiteNi3HgS3Mon. 2/m : B2/m
2.BD.25CarliniteTl2STrig. 3 : R3
2.BD.40ChalcothalliteTl2(Cu,Fe)6SbS4Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
2.BD.50CrookesiteCu7(Tl, Ag)Se4Tet.
2.BD.55BrodtkorbiteCu2HgSe2Mon. 2/m : P21/m

Related Minerals - Dana Grouping (8th Ed.)Hide,Fe)4Se4Tet.,Fe)4S4Tet.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.5.1CinnabarHgSTrig. 3 2 : P31 2 1
3.5.3MetacinnabarHgSIso. 4 3m : F4 3m
3.5.6BalkaniteCu9Ag5HgS8Mon. 2/m : P2/m
3.5.8ColoradoiteHgTeIso. m3m (4/m 3 2/m)
3.5.11CarliniteTl2STrig. 3 : R3
3.5.12CrookesiteCu7(Tl, Ag)Se4Tet.
3.5.14PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
3.5.18GalliteCuGaS2Tet. 4 2m : I4 2d
3.5.19RoquesiteCuInS2Tet. 4 2m : I4 2d

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 ThalcusiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.

Internet Links for ThalcusiteHide

Localities for ThalcusiteHide

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.
  • Catamarca
    • Andalgalá Department
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. ; Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina); DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.; Hubert, P., Werner, H., & Dan, T. (2009). A contribution to the knowledge of the mineralization at Mina Capillitas, Catamarca. Revista de la Asociacion Geologica Argentina, 64(3), 514-524.
PUTZ, Hubert; PAAR, Werner H and TOPA, Dan. A contributionto the knowledge of the mineralization at mina Capillitas, Catamarca. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 514-524.
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
  • Kujalleq
    • Narsaq
Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
        • Kangerluarsuk Fjord (Kangerdluarssuq Fjord)
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
        • Taseq area
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
  • Rajasthan (Rajputana)
    • Udaipur Division
      • Udaipur District
        • Rajpura-Dariba deposit
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
Russia (TL)
  • Eastern-Siberian Region
    • Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai)
      • Taymyrskiy Autonomous Okrug
        • Taimyr Peninsula
          • Putoran Plateau
            • Noril'sk
              • Talnakh Cu-Ni Deposit
ZVMO,(1976) 105, 202-206; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    • Sakha Republic (Saha Republic; Yakutia)
      • Aldan Shield
        • Chara and Tokko Rivers Confluence
[Lapis 1993:4 p.13-20]
  • Småland
    • Jönköping
      • Gränna
Kramm, U.& Koark, H. (1988): Isotopic composition of Galena lead from the Norra Kärr peralkaline complex, Sweden. Geologiska Föreningen i Stockholm Förhandlinga, 110: 311-316
  • Wallis (Valais)
    • Binn Valley
      • Fäld (Imfeld; Im Feld; Feld)
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.
  • Alaska
    • Juneau Borough
      • Admiralty District
Taylor, C.D., and Johnson, C.A., editors, 2010, Geology, geochemistry, and genesis of the Greens Creek massive sulfide deposit, Admiralty Island, southeastern Alaska: U.S. Geological Survey Professional Paper 1763, 429 p., 7 plates on CD.
Mineral and/or Locality  
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