Zaccagnaite Mineral Data

General Zaccagnaite Information
Chemical Formula:	Zn4Al2(OH)12(CO3)•3(H2O)
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
Empirical Formula:	Zn_3.9Al_2.1(OH)₁₂(CO₃)•3(H₂O)
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.
IMA Status:	Approved IMA 1997 (Dana # Added)
Locality:	Gioia quarry, Colonnata valley, Carrara basin region, Apuan Alps, Italy. Link to MinDat.org Location Data.
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.
Synonym:	IMA1997-019