General Information:
Chemical Formula:
CaV8O20·4(H2O)
Composition:
(Molecular Weight = 839.66 gm)
Calcium 4.77 % Ca
Vanadium 48.54 % V
Hydrogen 0.96 % H
Oxygen 45.73 % O
Empirical Formula:
CaV5+8O20·4(H2O)
Locality:
Minasragra, Peru.
Name Origin:
Named for Eulagio E. Fernanadini, former owner of the Minasragra deposit.
Physical Properties:
Cleavage:
[???] Perfect
Color:
dark green.
Density:
2.78
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Foliated - Two dimensional platy forms.,
Hardness:
2-3 - Gypsum-Calcite
Luster:
Sub Metallic
Streak:
dark green
More details...