AM_Witherite_15 Formula: Ba C O3 Name: Witherite Unit cell: 5.319 8.9189 6.5019 90.0 90.0 90.0 , V=308.45 Space group: PMCN (62)

Antao S M , Hassan I , Physics and Chemistry of Minerals , 34 (2007) p.573-580, BaCO3: high-temperature crystal structures and the Pmcn --> R3m phase, transition at 811 C, Locality: synthetic, Sample: T = 196 C