AM_Harmotome Formula: Ba (Si5.92 Al2.08) O23 Name: Harmotome Unit cell: 9.8688 14.1295 8.7092 90.0 124.74 90.0 , V=997.95 Space group: P121/M1 (11)

Stuckenschmidt E , Fuess H , Kvick A , European Journal of Mineralogy , 2 (1990) p.861-874, Investigation of the structure of harmotome by X-ray (293 K, 100 K), and neutron diffraction (15 K), Sample: 293 K