Mineral Information and Data:

Palmierite
K2Pb(SO4)2 [CNMNC approved formula]

Named for Luigi Palmieri (1807-1896), Italian physicist, Director of the Vesuvius Observatory, Italy.

IMA status : Valid species (Pre-IMA 1907) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
28.04.03.01  
  (28) Anhydrous Acid and Sulfates
  (28.04) with miscellaneous formulae
  (28.04.03)
  
Nickel-Strunz
(10th edition) :
07.AD.40
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.A) Sulfates (selenates, etc.) without Additional Anions, without H2O
  (07.AD) With only large cations
  
Crystal system: Trigonal System
Point group (H-M): 3m (or 3 2/m) — hexagonal-scalenohedral
  
  
  
Other Properties: H2O Soluble.

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