Mineral Information and Data:

Cetineite
NaK5Sb14S6O18 • 6H2O [CNMNC approved formula]

Named for the locality: In the Cetine mine, 20 km southwest of Siena, Tuscany, Italy.

IMA status : Approved Species 1987 ()
CLASSIFICATION 
Dana
(8th edition) :
02.13.03.01  
  (02) Sulfides - Including Selenides and Tellurides
  (02.13) (Oxysulfides)
  (02.13.03)
  
Nickel-Strunz
(10th edition) :
02.MA.05
  (02) Sulfides
  (02.M)
  (02.MA) Oxysulfosalts of Alkalies and Alkali Earths
  
Crystal system: Hexagonal System
Point group (H-M): 6 — pyramidal
  
  
  

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