Ehimeite

Al_2.06Ca_1.88Cr_0.6Fe_0.14H₂K_0.07Mg_4.06NaO₂₄Si_6.12Ti_0.02

Nishio-Hamane DOhnishi, M.Minakawa, T.Yamaura, J.Saito, S.Kadota, R.

Journal of Mineralogical and Petrological Sciences (2012) 107, 1-7

a=9.91760Å   b=18.0057Å   c=5.28650Å

α=90°   β=105.3950°   γ=90°