General Information:
Chemical Formula:
K3Fe+++(C2O4)3·3(H2O)
Composition:
(Molecular Weight = 491.25 gm)
Potassium 23.88 % K
Iron 11.37 % Fe
Hydrogen 1.23 % H
Carbon 14.67 % C
Oxygen 48.85 % O
Empirical Formula:
K3Fe3+(C2O4)33(h2o)
Environment:
In limonite.
Locality:
Cape Calamita, Elba, Tuscany, Italy.
Name Origin:
Named for Carlo Minguzzi (1910-1953), Italian mineralogist and professor, University of Pavia.
Physical Properties:
Cleavage:
[010] Perfect
Color:
green or yellow green.
Density:
2.092 - 2.142, Average = 2.11
Habits:
Tabular - Form dimensions are thin in one direction., ,
Luster:
Vitreous (Glassy)
More details...