AM_Pertsevite-(F) Formula: Mg8 B3.39 Si.61 O13.84 F2.16 H.96 Name: Pertsevite-(F) Unit cell: 20.49 4.571 11.89 90.0 90.0 90.0 , V=1113.61 Space group: PNA21 (33)

Schreyer W , Armbruster T , Bernhardt H J , Medenbach O , European Journal of Mineralogy , 15 (2003) p.1007-1018, Pertsevite, a new silication magnesioborate mineral with an end-member, composition Mg2BO3F, in kotoite marble from east of Verkhoyansk, Sakha-Yakutia, Russia, Locality: east of Verkhoyansk, Sakha-Yakutia, Russia