Hurlbutite

Be₂CaO₈P₂

Lindbloom, J. T.Gibbs, G. V.Ribbe, P. H.

American Mineralogist (1974) 59, 1267-1271

a=8.299Å   b=8.782Å   c=7.798Å

α=90°   β=90.5°   γ=90°