Nickel

General Information: Chemical Formula:Ni Composition:(Molecular Weight = 58.69 gm)Nickel 100.0 % Ni Empirical Formula: Ni IMA Status:Approved IMA 1967 Name Origin:From the German Nickel - "rogue."Physical Properties: Color:gray white or silvery white. Density:7.8 - 8.2, Average = 8 Diaphaniety:Opaque Habits:Granular - Generally occurs as anhedral to subhedral crystals in matrix., Massive - Uniformly indistinguishable crystals forming large masses., Hardness:4-5 - Fluorite-Apatite Luster:Metallic Streak:grayish whiteMore details...

Atomic Mass : 58.69Atomic Number : 28Name Origins: German, kupfernickel = "devils copper."Year Discovered : 1751Discovery Credits : Discovered by A. F. Cronstedt at Stockholm, Sweden.More Details

General Information: Chemical Formula:(NH4)2(Ni,Mg)(SO4)2·6(H2O) Composition:(Molecular Weight = 386.39 gm)Magnesium 1.57 % MgNickel 11.39 % NiHydrogen 5.22 % H Sulfur 16.60 % S Nitrogen 7.25 % N Oxygen 57.97 % O  Empirical Formula: NH42Ni0.75Mg0.25(SO4)2·6(H2O) IMA Status:Approved IMAPhysical Properties: Color:blue. Diaphaniety:Transparent Hardness:2.5 - Finger Nail Luster:Vitreous (Glassy)More details...

General Information: Chemical Formula:(Ni,Co)As3-x Composition:(Molecular Weight = 246.05 gm)Cobalt 5.99 % CoNickel 17.89 % NiArsenic 76.12 % As Empirical Formula: Ni0.75Co0.25As2.5 Locality:SIPhysical Properties: Color:gray, tin white, or gray. Density:6.5 Diaphaniety:Opaque Habits:Massive - Uniformly indistinguishable crystals forming large masses., Crystalline - Fine - Occurs as well-formed fine sized crystals., Granular - Generally occurs as anhedral to subhe dral crystals in matrix. Hardness:5.5-6 - Knife Blade-Orthoclase Luminescence:Non-fluorescent. Luster:MetallicMore details...

General Information: Chemical Formula:(Ni,Co)As3-x Composition:(Molecular Weight = 246.05 gm)Cobalt 5.99 % CoNickel 17.89 % NiArsenic 76.12 % As Empirical Formula: Ni0.75Co0.25As2.5 Locality:SIPhysical Properties: Color:gray, tin white, or gray. Density:6.5 Diaphaniety:Opaque Habits:Massive - Uniformly indistinguishable crystals forming large masses., Crystalline - Fine - Occurs as well-formed fine sized crystals., Granular - Generally occurs as anhedral to subhe dral crystals in matrix. Hardness:5.5-6 - Knife Blade-Orthoclase Luminescence:Non-fluorescent. Luster:MetallicMore details...

Ni