Crystal structure data for BSA products

[Fabra-Puchol, Maria]

 
Hi all, 
 
I would like to know if someone could help me to find the crystal data
(*.CIF) of the following phase:   BaAl2Si2O8 orthorrombic.
I have already checked in the most commun links and I found the
BaAl2Si2O8 monocmonic but that's not enough.... 
 
Thank you very much 
 
Maria Fabra