Mineral Information and Data:

Margaritasite  
Cs2(UO2)2(VO4)2 • H2O [CNMNC approved formula]

Named for the locality: Margaritas uranium deposit, Peňúna Blanca district, about 70 km north of Chihuahua City, Chihuahua, Mexico.

IMA status : Approved Species 1982 ()
CLASSIFICATION 
Dana
(8th edition) :
40.02a.28.02  
  (40) Hydrated Phosphates
  (40.02a) where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++
  (40.02a.28)
  
Nickel-Strunz
(10th edition) :
04.HB.05
  (04) Oxides and Hydroxides
  (04.H) V[5+,6+] Vanadates
  (04.HB) Uranyl Sorovanadates
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  
Other Properties: Radioactive.
Comments: Radioactive.

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