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Briartite

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Formula:
Cu
 
2
(Fe,Zn)GeS
 
4
System:TetragonalHardness:3½ - 4½
Member of:Stannite Group
Name:For Gaston Briart
This page provides mineralogical data about Briartite.

Classification of Briartite

IMA status:Approved
Strunz 8th edition ID:2/C.06-40
Nickel-Strunz 10th (pending) edition ID:2.KA.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
K : Sulfarsenates, Sulfantimonates
A : Sulfarsenates with (As,Sb)S4 tetrahedra
Dana 8th edition ID:2.9.2.3

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
Hey's CIM Ref.:6.2.2

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
2 : Sulphogermanates
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Type Occurrence of Briartite

Type Locality:Kipushi Mine (Prince Léopold Mine), Kipushi, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
Year of Discovery:1965
Geological Setting of type material:Inclusions in Ge bearing minerals
Associated Minerals at type locality:
ChalcopyriteTennantiteRenieriteGermaniteGalena
Sphalerite

Physical Properties of Briartite

Diaphaneity (Transparency):Opaque
Hardness (Mohs):3½ - 4½
Density (calculated):4.337 g/cm3

Crystallography of Briartite

Crystal System:Tetragonal
Cell Parameters:a = 5.32Å, c = 10.51Å
Ratio:a:c = 1 : 1.976
Unit Cell Volume:V 297.46 ų (Calculated from Unit Cell)
Z:2
Morphology:Small grains
Twinning:Polysynthetic

Optical Data of Briartite

Type:Anisotropic
Anisotropism:weak in air, distinct in oil
Colour in reflected light:Gray to gray-blue

Chemical Properties of Briartite

Formula:
Cu
 
2
(Fe,Zn)GeS
 
4
Simplified for copy/paste:Cu2(Fe,Zn)GeS4
Essential elements:Cu, Fe, Ge, S
All elements listed in formula:Cu, Fe, Ge, S, Zn
Common Impurities:Ga,Sn

Relationship of Briartite to other Species

Member of:Stannite Group
Other Members of Group:

- +
Černýite
Cu
 
2
(Cd,Zn,Fe)SnS
 
4
Famatinite
Cu
 
3
SbS
 
4
Ferrokesterite
Cu
 
2
(Fe,Zn)SnS
 
4
Ge-stannoidite
Cu
 
8
Fe
 
2
ZnGe
 
2
S
 
12
Hocartite
Ag
 
2
(Fe
2+
 
,Zn)SnS
 
4
Kesterite
Cu
 
2
(Zn,Fe)SnS
 
4
Kesterite Subgroup
Kuramite
Cu
 
3
SnS
 
4
Luzonite
Cu
 
3
AsS
 
4
Permingeatite
Cu
 
3
SbSe
 
4
Petrukite
(Cu,Fe,Zn,Ag)
 
3
(Sn,In)S
 
4
Pirquitasite
Ag
 
2
ZnSnS
 
4
Sakuraiite
(Cu,Zn,Fe)
 
3
(In,Sn)S
 
4
Stannite
Cu
 
2
(Fe,Zn)SnS
 
4
Velikite
Cu
 
2
HgSnS
 
4
Related Minerals - Nickel-Strunz Grouping):

- +
2.KA.05Enargite
Cu
 
3
AsS
 
4
2.KA.05Petrukite
(Cu,Fe,Zn,Ag)
 
3
(Sn,In)S
 
4
2.KA.10Famatinite
Cu
 
3
SbS
 
4
2.KA.10Luzonite
Cu
 
3
AsS
 
4
2.KA.10Permingeatite
Cu
 
3
SbSe
 
4
2.KA.10Barquillite
Cu
 
2
CdGeS
 
4
2.KA.15Fangite
Tl
 
3
AsS
 
4
Related Minerals - Hey's Index Grouping:

- +
6.2.1Germanite
Cu
 
13
Fe
 
2
Ge
 
2
S
 
16
6.2.3Renierite
(Cu,Zn)
 
11
(Ge,As)
 
2
Fe
 
4
S
 
16
6.2.4Argyrodite
Ag
 
8
GeS
 
6
6.2.5Canfieldite
Ag
 
8
SnS
 
6
6.2.6Morozeviczite
(Pb,Fe)
 
3
Ge
 
1-x
S
 
4
6.2.7Polkovicite
(Fe,Pb)
 
3
(Ge,Fe)
 
1-x
S
 
4

Other Names for Briartite

Synonyms:
IMA1965-018
Other Languages:
German:Briartit
Russian:Бриартит
Spanish:Briartita

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 Briartite

Reference List:

- +
American Mineralogist: 51: 1816.

American Mineralogist: 80: 849.

Internet Links for Briartite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Briartite details from Handbook of Mineralogy (PDF)
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  • Localities for Briartite

    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.
    (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.
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Kipushi
    Bull.Soc.fr.Min.Crist.(1965) 88, 432-437; Nenasheva, S. New Data on Minerals (2003): 38: 41-44; Chabu, M. (1995). The Geochemistry Of Phlogopite And Chlorite From The Kipushi Zn-Pb--Gu Deposit, Shaba, Zaire., Canadian Mineralogist 33, 547-558.
    France
     
    • Midi-Pyrénées
      • Ariège
    Lips, ALW (2006) A review of non-ferrous mineral deposits in Europe - Finalised initial database BRGM/RP -54957 - FR
      • Haute-Garonne
        • Argut-Dessus
    J. W. Anthony et al.: Handbook of Mineralogy, Vol. 3 (1997), 21
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Guillaumes
    R. Pierrot, P. Picot, J. Feraud, J. Vernet : "Inventaire Minéralogique de la France, N° 4, Alpes Maritimes", BRGM, 1974
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
    No reference listed
    Namibia
     
    • Otjikoto Region (Oshikoto)
      • Tsumeb
    Gramaccioli, C. M., 1985. Conoscere i minerali. I solfosali. Istituto Geografico De Agostini, Novara, 96 pp
    Spain
     
    • Andalusia
      • Granada
        • Motril
    - Morales Ruano,S.,Touray,J.C., Barbanson,L.y Fenoll,P. (1996). Génesis de las mineralizaciones de Ge asociadas a esfaleritas portadoras de fluidos "incompatibles" del Cerro del Toro(Alpujárride, SE de España) Geogaceta, 20, 1567-1570.
    • Asturias
      • Riosa
    A. Paniagua et al. , Bull. Minéral. , 1988, 111, pp. 383-391.
    • Castile and Leon
      • Salamanca
    Revista de minerales, 2000 (Mars), 260-263.
    USA
     
    • Colorado
      • Boulder Co.
        • Jamestown District
    Minerals of Colorado (1997) Eckels, E. B.
    Zambia
     
    • Central Province
      • Kabwe District
        • Kabwe (Broken Hill)
    Kamona, A. F. & Friedrich, G. H. (2007): Geology, mineralogy and stable isotope geochemistry of the Kabwe carbonate-hosted Pb-Zn deposit, Central Zambia. Ore Geology Reviews 30, 217-243.; Kamona, A.F., Lévêque, J., Friedrich, G., and Haack, U. (1999): Mineralium Deposita 34, 273-283.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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