General Information:
Chemical Formula:
K2Fe+++Cl5·(H2O)
Composition:
(Molecular Weight = 329.32 gm)
Potassium 23.74 % K
Iron 16.96 % Fe
Hydrogen 0.61 % H
Chlorine 53.83 % Cl
Oxygen 4.86 % O
Empirical Formula:
K2Fe3+Cl5·(H2O)
Locality:
Vesuvius and Etna.
Name Origin:
Named from the Greek, erythros = "red" amd sideros = "iron."
Physical Properties:
Cleavage:
[210] Perfect, [011] Perfect
Color:
brown red or red.
Density:
2.372
Diaphaniety:
Transparent to Translucent
Habits:
Tabular - Form dimensions are thin in one direction., Pseudo Octohedral - Crystals show an octohedral outline.,
Luster:
Vitreous (Glassy)
More details...