AM_Poldervaartite_2 Formula: Ca2 Si O5 H2 Name: Poldervaartite Unit cell: 9.487 9.179 10.666 90.0 90.0 90.0 , V=928.81 Space group: PBCA (61)

Marsh R E , Acta Crystallographica, Section C , 50 (1994) p.996-997, A revised structure for alpha-dicalcium silicate hydrate, Locality: synthetic Ca2SiO3OHOH