Mineralogy Database

Zaccagnaite Mineral Data

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General Zaccagnaite Information

Help on Chemical  Formula: Chemical Formula: Zn4Al2(OH)12(CO3)•3(H2O)
Help on Composition: Composition: Molecular Weight = 629.83 gm
   Aluminum   9.00 %  Al   17.00 % Al2O3
   Zinc      40.49 %  Zn   50.40 % ZnO
   Hydrogen   2.88 %  H    25.74 % H2O
   Carbon     1.91 %  C     6.99 % CO2
   Oxygen    45.73 %  O
            ______        ______ 
            100.00 %      100.13 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn3.9Al2.1(OH)12(CO3)•3(H2O)
Help on Environment: Environment: Hydrothermal alteration product of sphalerite and Al-rich fluids in calcite vein cavities within the Carrara marble. A member of the hydrotalcite-manasseite groups.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: Gioia quarry, Colonnata valley, Carrara basin region, Apuan Alps, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Domenico Zaccagna (1851-1940) who published the first geologic map of the Apuan Alps and a collector of minerals from the Carrara Marble.
Help on Synonym: Synonym: IMA1997-019