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Giraudite

Formula:
(Cu,Zn,Ag)
 
12
(As,Sb)
 
4
(Se,S)
 
13
Hardness:3½ - 4
This page provides mineralogical data about Giraudite.

Classification of Giraudite

IMA status:Approved
Strunz 8th edition ID:2/C.11-30
Nickel-Strunz 10th (pending) edition ID:2.GB.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
B : Neso-sulfarsenites, etc. with additional S
Dana 8th edition ID:3.3.6.5

3 : SULFOSALTS
3 : 3 <ø < 4
Hey's CIM Ref.:5.1.11

5 : Sulphosalts - Sulpharsenites and Sulphobismuthites (those containing Sn, Ge,or V are in Section 6)
1 : Sulpharsenites etc. of Cu
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Type Occurrence of Giraudite

Type Locality:Chaméane Uranium Deposit, Chaméane, Sauxillanges, Puy-de-Dôme, Auvergne, France
Year of Discovery:1982

Physical Properties of Giraudite

Hardness (Mohs):3½ - 4

Chemical Properties of Giraudite

Formula:
(Cu,Zn,Ag)
 
12
(As,Sb)
 
4
(Se,S)
 
13
Essential elements:As, Cu, Se
All elements listed in formula:Ag, As, Cu, S, Sb, Se, Zn
Common Impurities:Hg,Fe

Relationship of Giraudite to other Species

Related Minerals - Nickel-Strunz Grouping):
2.GB.05Argentotennantite
(Ag,Cu)
 
10
(Zn,Fe)
 
2
(As,Sb)
 
4
S
 
13
2.GB.05Freibergite
(Ag,Cu,Fe)
 
12
(Sb,As)
 
4
S
 
13
2.GB.05Galkhaite
(Cs,Tl)(Hg,Cu,Zn)
 
6
(As,Sb)
 
4
S
 
12
2.GB.05Goldfieldite
Cu
 
12
(Te,Sb,As)
 
4
S
 
13
2.GB.05Hakite
(Cu,Hg,Ag)
 
12
Sb
 
4
(Se,S)
 
13
2.GB.05Tennantite
(Cu,Ag,Fe,Zn)
 
12
As
 
4
S
 
13
2.GB.05Tetrahedrite
(Cu,Fe,Ag,Zn)
 
12
Sb
 
4
S
 
13
2.GB.10Selenostephanite
Ag
 
5
Sb(Se,S)
 
4
2.GB.10Stephanite
Ag
 
5
SbS
 
4
2.GB.15Pearceite
(Ag,Cu)
 
16
(As,Sb)
 
2
S
 
11
2.GB.15Polybasite
(Ag,Cu)
 
16
(Sb,As)
 
2
S
 
11
2.GB.15Selenopolybasite
[(Ag,Cu)
 
6
(Sb,As)
 
2
(S,Se)
 
7
][Ag
 
9
Cu(S,Se)
 
2
Se
 
2
2.GB.15Cupropearceite
[Cu
 
6
As
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
2.GB.15IMA2008-004
[Cu
 
6
Sb
 
2
S
 
7
][Ag
 
9
CuS
 
4
]
Related Minerals - Hey's Index Grouping:
5.1.1Sinnerite
Cu
 
6
As
 
4
S
 
9
5.1.2Tennantite
(Cu,Ag,Fe,Zn)
 
12
As
 
4
S
 
13
5.1.4Chalcostibite
CuSbS
 
2
5.1.5Tetrahedrite
(Cu,Fe,Ag,Zn)
 
12
Sb
 
4
S
 
13
5.1.6Goldfieldite
Cu
 
12
(Te,Sb,As)
 
4
S
 
13
5.1.7Emplectite
CuBiS
 
2
5.1.8Cuprobismutite
Cu
 
10
Bi
 
12
S
 
23
5.1.9Wittichenite
Cu
 
3
BiS
 
3
5.1.10Hodrušhite
Cu
 
8
Bi
 
12
S
 
22
5.1.11Permingeatite
Cu
 
3
SbSe
 
4

Other Names for Giraudite

Synonyms:
IMA1980-089
German names:
Giraudit
Spanish names:
Giraudita

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 Giraudite

Reference List:American Mineralogist: 67: 1074-1075.

Internet Links for Giraudite

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  • Raman and XRD data at RRUFF project
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  • Giraudite details from Handbook of Mineralogy (PDF)
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    Localities for Giraudite

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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.
    France
     
    • Auvergne
      • Puy-de-Dôme
        • Sauxillanges
          • Chaméane
    		Tschermaks Min.Petr.Mitt.(1982) 29, 151-167
    Germany
     
    • Saxony
      • Erzgebirge
        • Schlema-Hartenstein District
    		Can Min 40, 4, (2002), 1161-1170
    The Canadian Mineralogist, V 42, 2004, pp. 1719-1732.
    Mexico
     
    • Mexico
      • Mun. de Temascaltepec
        • Temascaltepec de González (Temascaltepec)
    		Camprubi, A., Canals, A., Cardellach, E., Prol-Ledesma, R.M., Rivera, R., 2001, The La Guitarra Ag-Au low-sulfidation epithermal deposit, Temascaltepec district, Mexico: vein structure, mineralogy, and sulfide-sulfosalt chemistry. Society of Economic Geologists Special Publication, v. 8, p. 133-158.
    • Sonora
      • Mun. de Moctezuma
    		Lapis 2001(1), 11-40
    USA
     
    • Nevada
      • Lyon Co.
        • Talapoosa District
    		NBMG Spec. Pub. 31 Minerals of Nevada
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