AM_Cummingtonite_1
Formula:
Mn2.246 Mg4.514 Ca.24 Si8 O24 H2
Name:
Cummingtonite
Unit cell:
9.6045 18.1244 5.3251 90.0 102.642 90.0 , V=904.50
Space group:
C12/M1 (12)
Ghose S , Yang H , American Mineralogist , 74 (1989) p.1091-1096, Mn-Mg distribution in a C2/m manganoan cummingtonite: Crystal-chemical, considerations