Mineral Information and Data:

Lepkhenelmite-Zn
Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4 • 7H2O [CNMNC approved formula]

Named after the locality (Lepkhe-Nelm Mountain, Lovozero alkaline massif, Kola Peninsula, Russia) and composition.

IMA status : Approved Species 2003 ()
CLASSIFICATION 
Dana
(8th edition) :
60.01.03c.04  (This Dana# Added)
  (60) Cyclosilicate Four-Membered Rings
  (60.01) as Titanosilicates
  (60.01.03c) Labuntsovite Group (Kuzmenkoite subgroup Monoclinic [C2/m])
  
Nickel-Strunz
(10th edition) :
09.CE.30c
  (09) Silicates
  (09.C) Cyclosilicates
  (09.CE) [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions
  
Crystal system: Monoclinic System
Point group (H-M): m — domatic
  
  
  

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