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Formula: Cu4Cd(SO4)2(OH)6.4H2O
Sulphate, cadmium-bearing mineral
Crystal System: Monoclinic
Specific gravity: 3.292 calculated
Streak: White
Colour: Bluish green, pale bluish
Luminescence: Non-fluorescent under UV
Environments
Metamorphic environments
Hydrothermal environments
Localities
At the Berenguela mining district, José Manuel Pando Province, La Paz, Bolivia, niedermayrite has been found as a
secondary mineral associated with
tennantite-(Cd)
(MM 86.5.834–840).
At the type locality, the Esperanza Mine, Kaminiza mines, Km 3, Lavrion Mining District, Lavreotiki, East Attica, Attica,
Greece, niedermayrite occurs as a very rare mineral in the oxidation zone of a
zinc-rich hydrothermal orebody in
brecciated marble, formed
as an
alteration product of chalcopyrite and
greenockite. Associated minerals include
gypsum, malachite,
chalcanthite, brochantite,
hemimorphite, hydrozincite,
aurichalcite, monteponite,
otavite, sphalerite,
greenockite, hawleyite,
pyrite and galena
(HOM).
The niedermayrite is found as tiny euhedral plates, commonly intergrown as green crusts up to several
cm2
in size
(Mindat).
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