Jamborite

General Information:
 Chemical Formula:
(Ni++,Ni+++,Fe)(OH)2(OH,S,(H2O))
 Composition:
(Molecular Weight = 104.88 gm)
Iron 10.65 % Fe
Nickel 39.17 % Ni
Hydrogen 2.88 % H 
Sulfur 3.06 % S 
Oxygen 44.24 % O 
 Empirical Formula:
Ni0.5Ni0.2Fe3+0.2(OH)2.8S0.1(H2O)0.1
 Environment:
In cavites in ophiolitic rock. An alteration of millerite.
 IMA Status:
Approved IMA 1973
 Locality:
Montescuto Ragazza near Bologna and at Casteluccio di Moscheda near Modena, Italy
 Name Origin:
Named for John L. Jambor, (1936-), mineralogits, Geological Survey of Canada.
Physical Properties:
 Cleavage:
[???] Perfect
 Color:
green.
 Density:
2.67
 Habits:
Microscopic Crystals - Crystals visible only with microscopes., Fibrous - Crystals made up of fibers., Lamellar - Thin laminae producing a lamellar structure.
More details...