Mineralogy Database

Giraudite Mineral Data

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General Giraudite Information

Help on Chemical  Formula: Chemical Formula: (Cu,Zn,Ag)12(As,Sb)4(Se,S)13
Help on Composition: Composition: Molecular Weight = 2,042.97 gm
   Zinc      11.52 %  Zn
   Copper    22.40 %  Cu
   Silver     6.34 %  Ag
   Antimony   5.96 %  Sb
   Arsenic   11.00 %  As
   Selenium  37.68 %  Se
   Sulfur     5.10 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu7.2Zn3.6Ag1.2As3SbSe9.75S3.25
Help on Environment: Environment: As late stage deposits in veins cutting granite.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: From Chameane, Puy-de-Dome, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: To honor Roger Giraud, of the electron microprobe laboratory of the B.R.G.M.-C.N.R.S. in Orleans, France.
Help on Name Pronunciation: Name Pronunciation: Giraudite + Pronunciation Say GIRAUDITE