Chukhrovite

AlCa₄F₁₃H₂₄O₁₆SSi

Mathew MTakagi SWaerstad K RFrazier A W

American Mineralogist (1981) 66, 392-397

a=16.710Å   b=16.710Å   c=16.710Å

α=90°   β=90°   γ=90°