General Information:
Chemical Formula:
Al2(PO4)F2(OH)·7(H2O)
Composition:
(Molecular Weight = 330.05 gm)
Aluminum 16.35 % Al
Phosphorus 9.38 % P
Hydrogen 4.58 % H
Oxygen 58.17 % O
Fluorine 11.51 % F
Empirical Formula:
Al2(PO4)F2(OH)·7(H2O)
Physical Properties:
Cleavage:
[010] Indistinct, [111] Indistinct
Color:
golden yellow, colorless, dark purple, or black.
Density:
2.18
Diaphaniety:
Transparent
Hardness:
3 - Calcite
Luminescence:
Fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
More details...