AM_Tobermorite_5 Formula: Ca2.25 Si3 O11 H7 Name: Tobermorite Unit cell: 6.732 7.369 22.68 90.0 90.0 123.18 , V=941.67 Space group: B11M (8)

Merlino S , Bonaccorsi E , Armbruster T , European Journal of Mineralogy , 13 (2001) p.577-590, The real structure of tobermorite 11A: normal and anomalous forms,, OD character and polytypic modifications, Note: sample MDO2 - conventional X-ray source, Locality: Bascenov, Urals, Russia