General Information:
Chemical Formula:Cu4Cd(SO4)2(OH)6·4(H2O)
Composition:(Molecular Weight = 732.83 gm)Cadmium 15.34 %
CdCopper 34.69 %
CuHydrogen 1.93 %
H Sulfur 8.75 %
S Oxygen 39.30 %
O Empirical Formula: Cu4Cd(SO4)2(OH)6·4(H2O)
Environment:In brecciated marble. The cadmium dominant analogue of campigliaite.
IMA Status:Approved IMA (Dana # Added)
Locality:An abandoned adit in the Km3 area, Lavrion mining district, Attica peninsula, Greece.
Name Origin:Named after Gerhard Niedermayr (b. 1941), mineralogist and geologist, Naturhistorisches Museum, Vienna, Austria, compiler of the regional mineralogy of the eastern Alps.
Physical Properties: Cleavage:[010] Perfect
Color:bluish green.
Density:3.36
Diaphaniety:Transparent
Habits:Euhedral Crystals - Occurs as well-formed crystals showing good external form., Encrustations - Forms crust-like aggregates on matrix.,
Luminescence:Non-fluorescent.
Luster:Vitreous (Glassy)
Streak:white
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