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Briartite

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Formula:
Cu2(Fe,Zn)GeS4
Colour:
gray to gray blue
Hardness:
3½ - 4½
Specific Gravity:
4.337 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
For Gaston Briart (October 26 1897 - Brussels, June 13 1962), Belgian geologist who studied Kipushi deposit
Often associated with members of the germanite group.

See also 'Ge-stannoidite'.



Hide all sections | Show all sections

Classification of BriartiteHide

Approved
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
2.9.2.3

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
6.2.2

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
2 : Sulphogermanates

Pronounciation of BriartiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of BriartiteHide

Transparency:
Opaque
Colour:
gray to gray blue
Hardness:
3½ - 4½ on Mohs scale
Density:
4.337 g/cm3 (Calculated)

Optical Data of BriartiteHide

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

Chemical Properties of BriartiteHide

Formula:
Cu2(Fe,Zn)GeS4
IMA Formula:
Cu2FeGeS4
Common Impurities:
Ga,Sn

Crystallography of BriartiteHide

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

Type Occurrence of BriartiteHide

Place of Conservation of Type Material:
Musée de Minéralogie, Ecole des Mines de Paris
National History Musem, London
Université Catholique de Louvain, Louvain-la-Neuve, Belgium
Geological Setting of Type Material:
Inclusions in Ge bearing minerals
Associated Minerals at Type Locality:

Synonyms of BriartiteHide

Other Language Names for BriartiteHide

German:Briartit
Spanish:Briartita

Relationship of Briartite to other SpeciesHide

Member of:
Other Members of this group:
ČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
FamatiniteCu3SbS4Tet. 4 2m : I4 2m
FerrokësteriteCu2(Fe,Zn)SnS4Tet. 4 : I4
Ge-stannoiditeCu8Fe2ZnGe2S12
HocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
KësteriteCu2ZnSnS4Tet. 4 : I4
KeutschiteCu2AgAsS4Tet. 4 2m : I4 2m
KuramiteCu3SnS4Tet.
LuzoniteCu3AsS4Tet. 4 2m : I4 2m
OmariniiteCu8Fe2ZnGe2S12Orth. 2 2 2 : I2 2 2
PermingeatiteCu3SbSe4Tet.
Petrukite(Cu,Fe,Zn,Ag)3(Sn,In)S4Orth.
PirquitasiteAg2ZnSnS4Tet. 4 : I4
StanniteCu2FeSnS4Tet. 4 2m : I4 2m
StannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth.
Unnamed (Cu-Zn-In Sulphide)CuZn2InS4
VelikiteCu2HgSnS4Tet.
ZincobriartiteCu2(Zn,Fe)(Ge,Ga)S4Tet. 4 2m : I4 2m

Common AssociatesHide

Associated Minerals Based on Photo Data:
Renierite12 photos of Briartite associated with Renierite on mindat.org.
Tennantite8 photos of Briartite associated with Tennantite on mindat.org.
Germanite4 photos of Briartite associated with Germanite on mindat.org.
Sphalerite4 photos of Briartite associated with Sphalerite on mindat.org.
Chalcopyrite3 photos of Briartite associated with Chalcopyrite on mindat.org.
Quartz3 photos of Briartite associated with Quartz on mindat.org.
Gallite1 photo of Briartite associated with Gallite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

2.KA.05EnargiteCu3AsS4Orth. mm2 : Pmn21
2.KA.05Petrukite(Cu,Fe,Zn,Ag)3(Sn,In)S4Orth.
2.KA.10FamatiniteCu3SbS4Tet. 4 2m : I4 2m
2.KA.10LuzoniteCu3AsS4Tet. 4 2m : I4 2m
2.KA.10PermingeatiteCu3SbSe4Tet.
2.KA.10BarquilliteCu2CdGeS4Tet. 4 2m : I4 2m
2.KA.15FangiteTl3AsS4Orth.

Related Minerals - Dana Grouping (8th Ed.)Hide

2.9.2.1StanniteCu2FeSnS4Tet. 4 2m : I4 2m
2.9.2.2ČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.9.2.4KuramiteCu3SnS4Tet.
2.9.2.5Sakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.9.2.6HocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
2.9.2.7PirquitasiteAg2ZnSnS4Tet. 4 : I4
2.9.2.8VelikiteCu2HgSnS4Tet.
2.9.2.9KësteriteCu2ZnSnS4Tet. 4 : I4
2.9.2.10FerrokësteriteCu2(Fe,Zn)SnS4Tet. 4 : I4

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

6.2.1GermaniteCu13Fe2Ge2S16Iso. 4 3m : P4 3n
6.2.3Renierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
6.2.4ArgyroditeAg8GeS6Orth. mm2 : Pna21
6.2.5CanfielditeAg8SnS6Orth. mm2
6.2.6Morozeviczite(Pb,Fe)3Ge1-xS4Iso.
6.2.7Polkovicite(Fe,Pb)3(Ge,Fe)1-xS4Iso.

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 BriartiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Francotte J, Moreau J, Ottenburgs R (1965) La briartite, Cu2(Fe, Zn)GeS4, une nouvelle espèce minérale. Bulletin de la Société Française de Minéralogie et de Cristallographie 88, 432-437
Wintenberger M (1979) Etude de la structure cristallographique et magnetique de Cu2FeGeS4 et remarque sur la structure magnetique de Cu2MnSnS4. Materials Research Bulletin 14, 1195-1202
American Mineralogist: 51: 1816.
American Mineralogist: 80: 849.
Mozgova, N. N.; Nenasheva, S. N.; Borodaev, Yu. S.; Tsepin, A. I.; Kalinina, T. A. (1994): New data on briartite. Doklady Akademii Nauk 335(6), 780-783.

Internet Links for BriartiteHide

Localities for BriartiteHide

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.
Bulgaria
 
  • Pazardzhik Oblast (Pazardjik Oblast)
    • Panagyurishte (Panagurishte) Obshtina
      • Levski
Bogdanov, K., Tsonev, D., & Popov, K. (2004). Mineral Assemblages And Genesis Of The Cu-Au Epithermal Deposits In The Southern Part Of The Panaguyrishte Ore District, Bulgaria. Bulletin of the Geological Society of Greece, 36:406-415
Democratic Republic of Congo (Zaïre) (TL)
 
  • 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-Cu Deposit, Shaba, Zaire., Canadian Mineralogist 33, 547-558.
France
 
  • Occitanie
    • 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)
Wendel, W. & Rieck, B. (1999c): Lavrion: Die komplette Mineralliste. Lapis, 24 (7-8), 61-63.
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Gramaccioli, C. M., 1985. Conoscere i minerali. I solfosali. Istituto Geografico De Agostini, Novara, 96 pp; Mozgova, N. N.; Nenasheva, S. N.; Borodaev, Yu. S.; Tsepin, A. I.; Kalinina, T. A. (1994): New data on briartite. Doklady Akademii Nauk 335(6), 780-783.
Spain
 
  • Andalusia
    • Granada
      • Motril
Morales Ruano, S., Touray,J.C., Barbanson, L., Fenoll Hach-Ali, 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, pp. 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.
Mineral and/or Locality  
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