AM_Brochantite Formula: Cu4 S (O10 H6) Name: Brochantite Unit cell: 13.14 9.863 6.024 90.0 103.16 90.0 , V=760.21 Space group: P121/A1 (14)

Merlino S , Perchiazzi N , Franco D , European Journal of Mineralogy , 15 (2003) p.267-275, Brochantite, Cu4SO4(OH)6: OD character, polytypism and crystal structures