ABSTRACT

The (Zn,Cu) 2 Al(OH) 6 [Sb V (OH) 6 ] multinary phase (mineral zincalstibite-9R), which crystallizes in the trigonal structure with the lattice parameters a = 534.0 ± 0.2 and c = 8,801 ± 2 pm, is formed in the Al–H–Cu–Zn–O–Sb system (Mills et al. 2012a).