General Information:
Chemical Formula:Ni3Si2O5(OH)4
Composition:(Molecular Weight = 380.27 gm)Silicon 14.77 %
SiNickel 46.30 %
NiHydrogen 1.06 %
H Oxygen 37.87 %
O Empirical Formula: Ni3Si2O5(OH)4
Environment:Nickel-bearing laterite deposits.
Locality:Reis II mine, Nepoui, New Caledonia.
Name Origin:Named after its locality.
Physical Properties: Cleavage:[001] Good, [010] Good
Color:pale green or deep green.
Density:2.5 - 3.2, Average = 2.85
Diaphaniety:Translucent to subtranslucent
Habits:Platy - Sheet forms (e.g. micas)., Pseudo Hexagonal - Crystals show a hexagonal outline.,
Hardness:2-2.5 - Gypsum-Finger Nail
Luster:Vitreous - Pearly
Streak:greenish white
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