PbCu(VO4)(OH) - 08.BH.40 (Strunz)
(from Mina la Ojuele, Mapimi, Durango, Mexico)
Here we have a specimen of the hydrated lead and copper vanadium oxide mineral mottramite from Mexico. This is a relatively new find from the Mina la Ojuele mine. The mottramite forms as sharply formed mammilary masses that have a yellow to dark greenish-brown color. The mottramite has a ‘matt-like’ to silky luster. The mottramite specimens from this locality represent really excellent specimens from this species. Has a visible Pleochroism.