Mineral Information and Data:

Kamphaugite-(Y)
Ca2Y2(CO3)4(OH)2 • 3H2O [CNMNC approved formula]

Named for Erling Kamphaug (1931-), Norwegian mineral collector.

IMA status : Approved Species 1993 ()
CLASSIFICATION 
Dana
(8th edition) :
16b.01.07.01  
  (16b) Carbonates - Hydroxyl or Halogen
  (16b.01) where (A)m (B)n (XO3)p Zq, with (m+n):p=1:1
  (16b.01.07)
  
Nickel-Strunz
(10th edition) :
05.DC.10
  (05) Carbonates and Nitrates
  (05.D) Carbonates with Additional Anions, with H2O
  (05.DC) With large cations
  
Crystal system: Tetragonal System
Point group (H-M): 422 — trapezoidal
  
  
  

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