AM_Heulandite-Sr
Formula: Sr2.116 (Si13.5 Al4.5) O48.88 H34
Name: Heulandite-Sr
Unit cell: 17.714 18.0 7.43 90.0 116.627 90.0 , V=2117.81
Space group: C1M1 (8)

Dobelin N , Armbruster T , American Mineralogist , 88 (2003) p.527-533, Stepwise dehydration of Sr-exchanged heulandite:, A single-crystal X-ray study, Note: fully hydrated at room temperature