AM_Afwillite_1
Formula: Ca3 Si2 O10 H6
Name: Afwillite
Unit cell: 16.278 5.6321 13.236 90.0 134.898 90.0 , V=859.58
Space group: C1C1 (9)

Malik K M A , Jeffery J W , Acta Crystallographica, Section B , 32 (1976) p.475-480, A re-investigation of the structure of afwillite