Nickel ore is a nickel sulfide mineral that appears as light yellow needles, even as hair. It is produced in carbonate mines and can also be sublimated from other nickel minerals or volcanic materials.
Chemical composition: NiS, Ni nickel 64.67, S sulfur 35.33;
Nickel identification characteristics: the most characteristic is the light brass yellow needle-like crystals and radial or bundles of aggregates, and the reaction of nickel; according to the hardness, morphology and color can be distinguished from chalcopyrite, pyrite;
Origin of origin: It is a relatively rare mineral, typical hydrothermal product; Nickel sulfide formed by hydrothermal alteration;
Famous place of origin: the world famous producing areas Ural, Germany Long Kylin, Czechoslovakia, Britain and other places.
Name Source: Named after the first mineralist named WH Miller who studied the mineral;
Crystal morphology
Tripartite cone group. The crystal extends needle-like along the c-axis. Common simple shapes: (100), (110), (101), (012), etc. Double face (001).
Crystal structure
Crystalline and space group: trigonal system; C53v-R3m;
Cell parameters: arh=5.65 angstroms; α=116° 351, z=3; ah=9.62, ch=3.16 angstroms, z=9;
Powder crystal data: 2.777(1) 1.863(0.95)2.513(0.65)
Physical properties
Nickel hardness: 3-3.5
Specific gravity: 5.2-5.6g/cm3
Cleavage: Cleavage (10-11) and (01-12) Completely fractured: Fractures are jagged. Colour: Light brass yellow, sometimes coloured Stain: Green Black Transparency: Opaque Gloss: Strong metallic luster Luminous: No other: brittleness
Optical properties
The reflection color is bright yellow. Reflectance: 53 (green), 54 (orange), 54 (red). Double reflection is clear. Strong heterogeneity.