Mineral Information and Data:

Demesmaekerite  
Pb2Cu5(UO2)2(Se4+O3)6(OH)6 • 2H2O [CNMNC approved formula]

Named for Gaston Demesmaeker (1911-), Belgian mining geologist, who studied the Shikolobwe uranium deposits.

IMA status : Approved Species 1965 ()
CLASSIFICATION 
Dana
(8th edition) :
34.07.06.01  
  (34) Selenites - Tellurites - Sulfites
  (34.07)
  (34.07.06)
  
Nickel-Strunz
(10th edition) :
04.JJ.20
  (04) Oxides and Hydroxides
  (04.J) Arsenites, Antimonites, Bismuthites, Sulfites,
  (04.JJ) Selenites with additional anions, with H2O
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
  
  
  
Other Properties: Radioactive.
Comments: Radioactive.

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