Mineral Information and Data:

Kristiansenite
Ca2ScSn(Si2O7)(Si2O6OH) [CNMNC approved formula]

Named for Roy Kristiansen (1943-), amateur mineralogist who first observed the mineral.

IMA status : Approved Species 2002 ()
CLASSIFICATION 
Dana
(8th edition) :
56.02.04.16  (This Dana# Added)
  (56) Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02) with cations in [4] and/or >[4] coordination
  (56.02.04) Cuspidine - Wohlerite group
  
Nickel-Strunz
(10th edition) :
09.BC.30
  (09) Silicates
  (09.B) Sorosilicates (dimer) structures
  (09.BC) Si2O7 groups, without non-tetrahedral anions; cations in octahedral [6] and greater coordination
  
Crystal system: Triclinic System
Point group (H-M): 1 — pedial
  
  
  

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