AM_Orthoericssonite
Formula:
(Ba.7 Sr.3) Mn1.4 Fe1.5 Ti.1 Si2 O9
Name:
Orthoericssonite
Unit cell:
20.23 6.979 5.392 90.0 90.0 90.0 , V=761.27
Space group:
PNMN (58)
Matsubara S , Mineralogical Journal , 10 (1980) p.107-121, The crystal structure of orthoericssonite, Locality: Hijikuzu mine, Iwate Prefecture, japan