AM_Strontium_5 Formula: Sr Name: Strontium Unit cell: 4.28 4.28 7.05 90.0 90.0 120.0 , V=111.84 Space group: P63/MMC (194)

Hirst R G , King A J , Kanda F A , Journal of Physical Chemistry , 60 (1956) p.302-304, The barium-strontium equilibrium system, Locality: synthetic, Sample: at T = 225 C, note: known as gamma-strontium