General Information:
Chemical Formula:
KFe+++7(PO4)5(OH)7·8(H2O)
Composition:
(Molecular Weight = 1,168.06 gm)
Potassium 3.35 % K
Iron 33.47 % Fe
Phosphorus 13.26 % P
Hydrogen 1.98 % H
Oxygen 47.94 % O
Empirical Formula:
KFe3+7(PO4)5(OH)7·8(H2O)
IMA Status:
Approved IMA 1995 (Dana # Added)
Locality:
Santa Rita copper mine at Silver City, New Mexico, USA.
Physical Properties:
Cleavage:
[001] Good
Color:
white, cream, yellowish brown, pale yellow, or canary yellow.
Density:
2.96
Diaphaniety:
Translucent
Hardness:
3 - Calcite
Luster:
Silky
Streak:
pale yellowish white
More details...