General Information:
Chemical Formula:
Fe+++PO4·3(H2O) (?)
Composition:
(Molecular Weight = 204.86 gm)
Iron 27.26 % Fe
Phosphorus 15.12 % P
Hydrogen 2.95 % H
Oxygen 54.67 % O
Empirical Formula:
Fe3+PO4·3(H2O)
Locality:
Richelle, Vise, near Liege, Belgium.
Name Origin:
Named for Laurent Guillaumen de Koninck (1809-1887), Belgian geologist.
Physical Properties:
Cleavage:
[???] Good
Color:
yellow or white.
Density:
2.4
Diaphaniety:
Transparent
Habits:
Spherical - Spherical, rounded aggregates., Aggregates - Made of numerous individual crystals or clusters.,
Hardness:
3.5-4 - Copper Penny-Flourite
Luster:
Vitreous (Glassy)
Streak:
white
More details...