PREISWERKITE, [1]

Classification by Godovikov, 1997

Family: Mica
   SubFamily:    Siderophyllite
Group:
Series:
SubSeries:

Classification by Ciriotti, 2004

FAMILY: MICA (mica [trioctahedral-1m group])DG2,3[T4O10]X2

Definitions of Structure-type formulae elements