ANORTHITE, [4], at 31 kbar

Classification by Godovikov, 1997

Family: Feldspar
   SubFamily:    Plagioclase
Group:
Series:
SubSeries:

Classification by Ciriotti, 2004

FAMILY: FELDSPAR (feldspar [plagioclase group])D2x/v,3[TxT'4-xO8]2; x=1↔2

Definitions of Structure-type formulae elements