Hsianghualite (Ca3Li2[BeSiO4]3F2, I213) was a rare new mineral discovered in China in 1958. Few studies were made of the material. The present work covered its complex morphology and found a twin structure using the electron back-scattering diffraction technique. Pole figures were used to analyze the twin relationship. The twin plane was found to be {110}, as predicted theoretically.

An Electron Backscattered Diffraction Study of Twin Structure in Hsianghualite. S.R.Zhao, H.J.Xu, Q.Y.Wang, L.Lu, C.Xu: Science China Earth Sciences, 2012, 55[1], 53-5