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General Information: Chemical Formula:Ni6Fe+++2(SO4)(OH)16·4(H2O) Composition:(Molecular Weight = 904.08 gm)Iron 12.35 % FeNickel 38.95 % NiHydrogen 2.68 % H Sulfur 3.55 % S Oxygen 42.47 % O  Empirical Formula: Ni6Fe3+2(SO4)(OH)16·4(H2O) IMA Status:Approved IMA 1959Physical Properties: Color:brown, green, greenish yellow, or yellow. Luster:Earthy (Dull) Streak:brownish wComposition:(Molecular Weight = 904.08 gm)Iron 12.35 % FeNickel 38.95 % NiHydrogen 2.68 % H Sulfur 3.55 % S Oxygen 42.47 % O  Empirical Formula: Ni6Fe3+2(SO4)(OH)16·4(H2O) IMA Status:Approved IMA 1959Physical Properties: Color:brown, green, greenish yellow, or yellow. Luster:Earthy (Dull) Streak:brownish whiteMore details...

Ni6Fe2(SO4)(OH)16 4(H2O)