General Information:
Chemical Formula:
Zn2(Fe++,Mn)(PO4)2·4(H2O)
Composition:
(Molecular Weight = 448.40 gm)
Manganese 3.06 % Mn
Zinc 29.17 % Zn
Iron 9.34 % Fe
Phosphorus 13.82 % P
Hydrogen 1.80 % H
Oxygen 42.82 % O
Empirical Formula:
Zn2Fe2+0.75Mn2+0.25(PO4)2·4(H2O)
Name Origin:
Named after its chemical composition containing phosphorus and the Greek fyllon - meaning "leaf."
Physical Properties:
Cleavage:
[100] Perfect, [010] Distinct, [102] Distinct
Color:
blue green, colorless, or light green.
Density:
3.1
Diaphaniety:
Transparent
Habits:
Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces., ,
Hardness:
3-3.5 - Calcite-Copper Penny
Luster:
Vitreous (Glassy)
Streak:
white
More details...