AM_Johannsenite
Formula:
Ca Mn Si2 O6
Name:
Johannsenite
Unit cell:
9.978 9.156 5.293 90.0 105.48 90.0 , V=466.02
Space group:
C12/C1 (15)
Freed R L , Peacor D R , American Mineralogist , 52 (1967) p.709-720, Refinement of the crystal structure of johannsenite