General Information:
Chemical Formula:
2(Fe,Ni)S·1.6(Mg,Fe++)(OH)2
Composition:
(Molecular Weight = 276.87 gm)
Magnesium 12.29 % Mg
Iron 34.29 % Fe
Nickel 10.60 % Ni
Hydrogen 1.16 % H
Sulfur 23.16 % S
Oxygen 18.49 % O
Empirical Formula:
Fe2+1.5Ni0.5S2Mg1.4Fe2+0.21.6(OH)2
IMA Status:
Approved IMA 1973
Locality:
Kokka serpentinite, near Outokumpu, Finland.
Name Origin:
Named for Paavo Haapala (1906-), Finnish geologist.
Physical Properties:
Cleavage:
[???] Good
Color:
bronze red.
Density:
3.576
Diaphaniety:
Opaque
Habits:
Thin - Flat dimensioned crystals., Scaly - Morphology like fish scales.,
Hardness:
1 - Talc
Luster:
Metallic
More details...