White crystals of the extremely rare cadmium mineral lazaridisite (IMA 2012-043) from the famous Tsumeb deposit (Tsumeb Mine, Otavi Highlands, Namibia). Analyzed specimen by SEM-EDS and P-XRD. — Photo: David Hospital · CC BY-SA 4.0
Lazaridisite
Lazaridisite is an IMA-recognized mineral species in the sulfate class, with the chemical formula Cd₃(SO₄)₃·8H₂O.
Key properties: Mohs hardness 3; specific gravity 3.1; White streak; Vitreous luster.
IMA symbol Lrd, IMA status: approved, named in 2012.
A secondary mineral from the weathering of primary hawleyite and greenockite.
It is found associated with Voudourisite, sphalerite, galena, edwardsite, chalcanthite, gypsum, greenockite.
The mineral was named to honor Stathis Lazaridis (1953-2010), a mineral collector from Lavrion.