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Thalfenisite

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Formula:
Tl6(Fe,Ni,Cu)25S26Cl
Colour:
Brown
Hardness:
1 - 1½
Name:
The name reflects its composition: thallium, iron (latin "ferrum"), nickel and sulfur.
Djerfisherite Group

Classification of Thalfenisite

Approved 1979
2.FC.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
C : With Cl, Br, I (halide-sulfides)
2.15.2.2

2 : SULFIDES
15 : Chlor-sulfides
6.5.12

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
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Type Occurrence of Thalfenisite

Year of Discovery:
1979

Physical Properties of Thalfenisite

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Brown
Hardness (Mohs):
1 - 1½

Chemical Properties of Thalfenisite

Formula:
Tl6(Fe,Ni,Cu)25S26Cl
Essential elements:
All elements listed in formula:
Common Impurities:
K

Relationship of Thalfenisite to other Species

Other Members of Group:
Cu-djerfisheriteK6(Cu,Fe)25S26Cl
DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
Owensite(Ba,Pb)6(Cu,Fe,Ni)25S27
2.FC.05DjerfisheriteK6(Fe,Cu,Ni)25S26Cl
2.FC.05Owensite(Ba,Pb)6(Cu,Fe,Ni)25S27
2.FC.10BartoniteK6Fe20S26S
2.FC.10ChlorbartoniteK6Fe24S26(Cl,S)
2.FC.15aArzakiteHg32+S2(Br,Cl)2
2.FC.15aCorderoiteHg32+S2Cl2
2.FC.15cGrechishcheviteHg32+S2(Br,Cl,I)2
2.FC.15aLavrentieviteHg32+S2(Cl,Br)2
2.FC.15dRadtkeiteHg32+S2ICl
2.FC.15bKenhsuiteHg32+S2Cl2
2.FC.20aCapgaronniteHgAgS(Cl,Br,I)
2.FC.20cPerrouditeHg5Ag4S5(I,Br)2Cl2
2.FC.20bIltisiteHgAgS(Cl,Br)
2.FC.25Demicheleite-(Br)BiSBr
2.FC.25Demicheleite-(Cl)BiSCl
6.5.1CorderoiteHg32+S2Cl2
6.5.2ArzakiteHg32+S2(Br,Cl)2
6.5.3LavrentieviteHg32+S2(Cl,Br)2
6.5.4GrechishcheviteHg32+S2(Br,Cl,I)2
6.5.5RadtkeiteHg32+S2ICl
6.5.6CapgaronniteHgAgS(Cl,Br,I)
6.5.7PerrouditeHg5Ag4S5(I,Br)2Cl2
6.5.8ArdaitePb19Sb13S35Cl7
6.5.9DadsonitePb23Sb25S60Cl
6.5.10RadhakrishnaitePbTe3(Cl,S)2
6.5.11DjerfisheriteK6(Fe,Cu,Ni)25S26Cl

Other Names for Thalfenisite

Name in Other Languages:
Simplified Chinese:硫镍铁铊矿
Spanish:Thalfenisita

Other Information

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 Thalfenisite

Reference List:
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1979): 108: 696-701.

American Mineralogist (1981): 66: 219.

Internet Links for Thalfenisite

Localities for Thalfenisite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Russia (TL)
 
  • Eastern-Siberian Region
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Putoran Plateau
          • Noril'sk
            • Talnakh Cu-Ni Deposit
ZVMO,(1979) 108, 696-701; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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