Alsakharovite-Zn (IMA symbol: Ask-Zn) is an extremely rare alkaline strontium zinc titanium silicate mineral from the cyclosilicates class, with the chemical formula , from alkaline pegmatites. It belongs to the labuntsovite group.Pekov I. V., Chukanov N. V., Zadov A. E., Rozenberg K. A. and Rastsveateva R. K. 2003: Alsakharovite-Zn, NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4.7H2O, a new mineral of the labuntsovite group from Lovozero Massif, Kola Peninsula. Zapiski Vserossiyskogo mineralogicheskogo obshchestva, 132(1), pp. 52-58 (in Russian); http://www.mindat.org/min-26417.html Mindat
The mineral crystallizes in the monoclinic system with space group Cm.
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