Tetracalcium difluoride disilicate

Ca₄F₂O₇Si₂

Huang, Chien-HaoChan, Ting-ShanLiu, Wei-RenWang, De-YinChiu, Yi-ChenYeh, Yao-TsungChen, Teng-Ming

Journal of Materials Chemistry (2012) 22, 38 20210

a=7.55Å   b=10.43Å   c=10.85Å

α=90.°   β=69.93°   γ=90.°