AM_Xonotlite_1 Formula: Ca6 Si6 O19 Name: Xonotlite Unit cell: 8.712 7.363 7.012 89.99 90.36 102.18 , V=439.66 Space group: P-1 (2)

Hejny C , Armbruster T , Zeitschrift fur Kristallographie , 216 (2001) p.396-408, Polytypism in xonotlite Ca6Si6O17(OH)2, Note: polytype derived from structure in Kudoh and Takeuchi (1979), Locality: model structure, not experimentally determined