General Information:
Chemical Formula:
CuFe+++(SO4)2(OH)·4(H2O)
Composition:
(Molecular Weight = 400.59 gm)
Iron 13.94 % Fe
Copper 15.86 % Cu
Hydrogen 2.26 % H
Sulfur 16.01 % S
Oxygen 51.92 % O
Empirical Formula:
CuFe3+(SO4)2(OH)·4(H2O)
Physical Properties:
Cleavage:
[???] Perfect
Color:
brown, honey yellow, or dark brown.
Density:
2.73
Diaphaniety:
Transparent to Translucent
Hardness:
2.5 - Finger Nail
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
light yellow
More details...