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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 (3)
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.10

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.05Aurostibite
AuSb
 
2
2.EB.05Bambollaite
Cu(Se,Te)
 
2
2.EB.05Cattierite
CoS
 
2
2.EB.05Erlichmanite
OsS
 
2
2.EB.05Fukuchilite
Cu
 
3
FeS
 
8
2.EB.05Geversite
PtSb
 
2
2.EB.05Hauerite
MnS
 
2
2.EB.05Insizwaite
Pt(Bi,Sb)
 
2
2.EB.05Krut'aite
CuSe
 
2
2.EB.05Laurite
RuS
 
2
2.EB.05Penroseite
(Ni,Co,Cu)Se
 
2
2.EB.05Pyrite
FeS
 
2
2.EB.05Sperrylite
PtAs
 
2
2.EB.05Trogtalite
CoSe
 
2
2.EB.05Vaesite
NiS
 
2
2.EB.05Villamanínite
(Cu,Ni,Co,Fe)S
 
2
2.EB.05Dzharkenite
FeSe
 
2
2.EB.05Gaotaiite
Ir
 
3
Te
 
8
2.EB.10Ferroselite
FeSe
 
2
2.EB.10Hastite
CoSe
 
2
2.EB.10Kullerudite
NiSe
 
2
2.EB.10Marcasite
FeS
 
2
2.EB.10Mattagamite
CoTe
 
2
2.EB.15Alloclasite
(Co
 
0.65
Fe
 
0.35
)AsS - CoAsS
2.EB.15Anduoite
(Ru,Os)As
 
2
2.EB.15Clinosafflorite
(Co,Fe,Ni)As
 
2
2.EB.15Costibite
CoSbS
2.EB.15Krutovite
NiAs
 
2
2.EB.15Löllingite
FeAs
 
2
2.EB.15Nisbite
NiSb
 
2
2.EB.15Omeiite
(Os,Ru)As
 
2
2.EB.15Paracostibite
CoSbS
2.EB.15Pararammelsbergite
NiAs
 
2
2.EB.15Rammelsbergite
NiAs
 
2
2.EB.15Safflorite
(Co,Fe)As
 
2
2.EB.15Seinäjokite
(Fe,Ni)(Sb,As)
 
2
2.EB.15Oenite
CoSbAs
2.EB.20Arsenopyrite
FeAsS - (Fe
 
0.90
Co
 
0.10
)AsS
2.EB.20Glaucodot
(Fe
 
0.65
Co
 
0.35
)AsS - (Co
 
0.65
Fe
 
0.35
)AsS
2.EB.20Gudmundite
FeSbS
2.EB.20Osarsite
(Os,Ru)AsS
2.EB.20Paxite
CuAs
 
2
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.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
 
0.83-1
S
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

German names:
Frohbergit
Russian names:
Фробергит
Spanish names:
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

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  • 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)
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    Localities for Frohbergite

    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.
    Canada
     
    • Québec
      • Abitibi Co.
        • Montbray Township
    Finland
     
    • Etelä-Suomen Lääni
      • Orivesi
    		No reference listed
    • 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
    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)
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    • Hunedoara Co.
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    No reference listed
    Saudi Arabia
     
    Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    Sweden
     
    • Hälsingland
      • Ljusdal
    		No reference listed
    • Västerbotten
      • Sandfors
    		T. Wikström, thesis from Stockholm University
      • Skellefteå
        • Kåge
    		No reference listed
    USA
     
    • Arizona
      • Cochise Co.
        • Tombstone District
          • Tombstone
    		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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