Isotypism of Co(H2O)6[Sb(OH)6]2 with brandholzite and bottinoite

Isotypism of synthetic Co(H 2 O) 6 [Sb(OH) 6 ] 2 with brandholzite, Mg(H 2 O) 6 [Sb(OH) 6 ] 2 , and bottinoite, Ni(H 2 O) 6 [Sb(OH) 6 ] 2 , is obtained by an origin shift of the unit cell of Co(H 2 O) 6 [Sb(OH) 6 ] 2 (Friedrich et al. 2000) to 2/3, 1/3, 0.