Niedermayrite
A variety of Minerals
What is Niedermayrite?
Niedermayrite is a rare hydrated copper cadmium sulfate hydroxide mineral with formula: Cu4Cd(SO4)2(OH)6·4H2O. It crystallizes in the monoclinic system and occurs as encrustations and well formed vitreous blue-green prismatic crystals. It has a specific gravity of 3.36. Niedermayrite was named for Gerhard Niedermayr (born 1941), an Austrian mineralogist. It was first described in 1998 from a mine in the Lavrion District, Attica, Greece. It is also reported from the Ophir District, Tooele County, Utah. The environment is in brecciated marble. The cadmium dominant analogue of campigliaite.
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Quick Facts
Physical Properties
- Color
- Bluish green, pale bluish
- Density
- 3.292 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- CdCu4(SO4)2(OH)6 · 4H2O
- Elements
- Cd, Cu, H, O, S
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