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Frohbergite

Big Photo

San Simon Basin (San Simon River; Bowie Chabazite deposit), Bowie area, Cochise Co., Arizona, USA
© 2007, J. Weissman

Show Frohbergite Photos (4)
Formula:
FeTe
 
2
System:OrthorhombicHardness:3 - 4


Frohbergite-Mattagamite Series.

Classification of Frohbergite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/D.20-50
Nickel-Strunz 10th (pending) edition ID:2.EB.10a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
B : M:S = 1:2, with Fe, Co, Ni, PGE, etc.
Dana 8th edition ID:2.12.2.3

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
Hey's CIM Ref.:3.9.10

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

Type Locality:Robb-Montbray Mine, Montbray Township, Abitibi Co., Québec, Canada
Year of Discovery:1946

Physical Properties of Frohbergite

Hardness (Mohs):3 - 4

Crystallography of Frohbergite

Crystal System:Orthorhombic
Cell Parameters:a = 5.29Å, b = 6.27Å, c = 3.86Å
Ratio:a:b:c = 0.844 : 1 : 0.616
Unit Cell Volume:V 128.03 ų (Calculated from Unit Cell)

Chemical Properties of Frohbergite

Formula:
FeTe
 
2
Essential elements:Fe, Te
All elements listed in formula:Fe, Te

Relationship of Frohbergite to other Species

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

- +
2.EB.05aAurostibite
AuSb
 
2
2.EB.05bBambollaite
Cu(Se,Te)
 
2
2.EB.05aCattierite
CoS
 
2
2.EB.05aErlichmanite
OsS
 
2
2.EB.05aFukuchilite
Cu
 
3
FeS
 
8
2.EB.05aGeversite
PtSb
 
2
2.EB.05aHauerite
MnS
 
2
2.EB.05aInsizwaite
Pt(Bi,Sb)
 
2
2.EB.05aKrut'aite
CuSe
 
2
2.EB.05aLaurite
RuS
 
2
2.EB.05aPenroseite
(Ni,Co,Cu)Se
 
2
2.EB.05aPyrite
FeS
 
2
2.EB.05aSperrylite
PtAs
 
2
2.EB.05aTrogtalite
CoSe
 
2
2.EB.05aVaesite
NiS
 
2
2.EB.05aVillamanínite
(Cu,Ni,Co,Fe)S
 
2
2.EB.05aDzharkenite
FeSe
 
2
2.EB.05aGaotaiite
Ir
 
3
Te
 
8
2.EB.10bAlloclasite
(Co
 
0.65
Fe
 
0.35
)AsS - CoAsS
2.EB.10dCostibite
CoSbS
2.EB.10aFerroselite
FeSe
 
2
2.EB.10cGlaucodot
(Co
 
0.50
Fe
 
0.50
)AsS
2.EB.10aKullerudite
NiSe
 
2
2.EB.10aMarcasite
FeS
 
2
2.EB.10aMattagamite
CoTe
 
2
2.EB.10eParacostibite
CoSbS
2.EB.10ePararammelsbergite
NiAs
 
2
2.EB.10fOenite
CoSbAs
2.EB.15aAnduoite
(Ru,Os)As
 
2
2.EB.15aClinosafflorite
(Co,Fe,Ni)As
 
2
2.EB.15aLöllingite
FeAs
 
2
2.EB.15aNisbite
NiSb
 
2
2.EB.15aOmeiite
(Os,Ru)As
 
2
2.EB.15cPaxite
CuAs
 
2
2.EB.15aRammelsbergite
NiAs
 
2
2.EB.15aSafflorite
(Co,Fe,Ni)As
 
2
2.EB.15bSeinäjokite
(Fe,Ni)(Sb,As)
 
2
2.EB.20Arsenopyrite
FeAsS - (Fe
 
0.90
Co
 
0.10
)AsS
2.EB.20Gudmundite
FeSbS
2.EB.20Osarsite
(Os,Ru)AsS
2.EB.20Ruarsite
(Ru,Os)AsS
2.EB.25Cobaltite
CoAsS
2.EB.25Gersdorffite
NiAsS
2.EB.25Hollingworthite
(Rh,Pt,Pd)AsS
2.EB.25Irarsite
(Ir,Ru,Rh,Pt)AsS
2.EB.25Jolliffeite
NiAsSe
2.EB.25Krutovite
NiAs
 
2
2.EB.25Maslovite
PtBiTe
2.EB.25Michenerite
PdBiTe
2.EB.25Padmaite
PdBiSe
2.EB.25Platarsite
(Pt,Rh,Ru)AsS
2.EB.25Testibiopalladite
PdTe(Sb,Te)
2.EB.25Tolovkite
IrSbS
2.EB.25Ullmannite
NiSbS
2.EB.25Willyamite
(Co,Ni)SbS
2.EB.25Changchengite
IrBiS
2.EB.25Mayingite
IrBiTe
2.EB.25Hollingsworthite
2.EB.25Kalungaite
PdAsSe
2.EB.25Milotaite
PdSbSe
2.EB.30Urvantsevite
Pd(Bi,Pb)
 
2
2.EB.35Rheniite
ReS
 
2
Related Minerals - Hey's Index Grouping:

- +
3.9.1Pyrrhotite
Fe
 
7
S
 
8
 , (-4M),also given as Fe
 
1-x
S (x = 0 - 0.2)
3.9.3Pyrite
FeS
 
2
3.9.4Marcasite
FeS
 
2
3.9.5Greigite
Fe
2+
 
Fe
3+
2
S
 
4
3.9.6Mackinawite
(Fe,Ni)
 
9
S
 
8
3.9.7Smythite
(Fe,Ni)
 
9
S
 
11
3.9.8Achavalite
FeSe
3.9.9Ferroselite
FeSe
 
2
3.9.11Löllingite
FeAs
 
2
3.9.12Arsenopyrite
FeAsS - (Fe
 
0.90
Co
 
0.10
)AsS
3.9.13Gudmundite
FeSbS

Other Names for Frohbergite

Other Languages:
German:Frohbergit
Russian:Фробергит
Spanish:Frohbergita
Varieties:
Cobalt-frohbergite

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 Frohbergite

Reference List:American Mineralogist: 32: 210.

Internet Links for Frohbergite

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

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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.
    Brazil
     
    • Central-West Region
      • Goiás
        • Mara Rosa
    		Econ Geol. (1995) 90:308-321
    Canada
     
    • British Columbia
      • Omenica Mining Division
        • Lindquist Lake
    		Handbook of Mineralogy
    • Québec
      • Abitibi Co.
        • Montbray Township
    		Econ.Geol.: 83; 395-404
      • Louvicourt Co.
        • Val d'Or
    		Econ.Geol.: 83; 395-404
      • Rouyn-Noranda
        • Noranda
    		Econ.Geol.: 83; 395-404
    Finland
     
    • Etelä-Suomen Lääni
      • Orivesi
    		Economic Geology (1996) 91:1335-1353
    • Itä-Suomen Lääni
      • Ilomantsi
    		No reference listed
    • Oulun (Oulu) Lääni
      • Kuusamo
    No reference listed
    France
     
    • Brittany
      • Finistère
        • Bolazec
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Japan
     
    • Hokkaido Island
      • Sapporo
    		Nakata et al (1989) Mineralogical Magazine, 53, 387-388.
    • Honshu Island
      • Chubu Region
        • Shizuoka Prefecture
          • Shimoda City
            • Rendaiji
    		Gunnar Farber specimens, 2007 (but one of these, analyzed by F. Keutsch, showed only gold and gold tellurides).
    Kazakhstan
     
    • Kökshetaü Oblysy (Kokshatau [Kokchetav] Oblast')
    		P.M. Kartashov analytical data
    Norway
     
    • Finnmark
      • Kautokeino
    		R. Hagen (pers. com. 1980); Neumann (1985, p. 39).
    Romania
     
    • Alba Co.
      • Zlatna (Zalatna; Zalathna)
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    • Hunedoara Co.
      • Brad
    		Econ.Geol.: 83; 395-404; Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Econ.Geol.: 83; 395-404
    No reference listed
    Saudi Arabia
     
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Econ.Geol.: 83; 395-404
    • Mintaqah Tabuk
      • Wejh
    		Econ.Geol.: 83; 395-404
    Sweden
     
    • Hälsingland
      • Ljusdal
    		No reference listed
    • Västerbotten
      • Sandfors
    		T. Wikström, thesis from Stockholm University
      • Skellefteå
        • Kåge
    		No reference listed
    USA
     
    • Arizona
      • Cochise Co.
        • Tombstone Hills
          • Tombstone District
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 227; Williams, S.A. (1980b), The Tombstone District, Cochise Co., AZ, Min.Rec.: 11: 251-256.
    A Listing of North Carolina Minerals,Leonard S.Wiener and Sigrid Ballew,1995,Updated by Kenny Gay,June 2007, North Carolina Geological Survey,Geologic Note No.4
      • Montgomery Co.
        • Carolina Slate Belt
    		Callahan,J.E,Craig,J.R Solberg,T.N,1995, Telluride mineralization of the southeastern United States,Southeastern Geology,v.35, no.3, pg.139-151
    Mineral and/or Locality
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