General Information:
Chemical Formula:
Fe+++[H2As+++++O4]3·5-5.5(H2O)
Composition:
(Molecular Weight = 577.74 gm)
Iron 9.67 % Fe
Arsenic 38.90 % As
Hydrogen 2.97 % H
Oxygen 48.46 % O
Empirical Formula:
Fe3+3(H2)3(AsO4)·5.5(H2O)
Locality:
Kaatiala granite pegmatite, Kuortane, western Finland.
Name Origin:
Named for the locality.
Physical Properties:
Color:
greenish blue, gray, yellow, or white.
Density:
2.64
Diaphaniety:
Transparent
Habits:
Acicular - Occurs as needle-like crystals., Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.,
Streak:
white
More details...