Mineral Information and Data:

Gotzenite
NaCa6Ti(Si2O7)2OF3 [CNMNC approved formula]

Named for Gustav Adolf Von Gotzen (1866-1910), German traveler and first European to climb Mt. Shaheru, North Kivu, Zaire.

IMA status : Approved Species 1957 ()
CLASSIFICATION 
Dana
(8th edition) :
56.02.05.04  
  (56) Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02) with cations in [4] and/or >[4] coordination
  (56.02.05) Mosandrite and related species
  
Nickel-Strunz
(10th edition) :
09.BE.22
  (09) Silicates
  (09.B) Sorosilicates (dimer) structures
  (09.BE) Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
  
  
  

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