data_1001563 _chemical_name_systematic ; Calcium tin silicon gallium oxide (3/3/.05/2/12) ; _chemical_formula_structural 'Ca3 Sn2.95 Si.05 Ga2 O12' _chemical_formula_sum 'Ca3 Ga2 O12 Si.05 Sn2.95' _publ_section_title ; Solid solutions Ca~3~Sn~2+x~Si(Ge)~1-x~Ga~2~O~12~ (0