General Information:
Chemical Formula:(Mn,Ni,Cu)8(SO4)4(CO3)(OH)6·48(H2O)
Composition:(Molecular Weight = 1,870.41 gm)Manganese 11.75 %
MnCopper 3.40 %
CuNickel 9.41 %
NiHydrogen 5.50 %
H Carbon 0.64 %
C Sulfur 6.86 %
S Oxygen 62.44 %
O Empirical Formula: Mn2+4Ni3Cu(SO4)4(CO3)(OH)6·48(H2O)
Environment:Veins cutting massive serpentinite.
IMA Status:Approved IMA 1976
Locality:Nakauri, Achi Prefecture, Japan.
Name Origin:Named for the locality.
Physical Properties: Color:sky blue or light blue.
Density:2.39
Habits:Acicular - Occurs as needle-like crystals., Fibrous - Crystals made up of fibers., Microscopic Crystals - Crystals visible only with microscopes.
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