Mottramite
![](/Images/godic/202501/28/Mottramite1526.jpg")
![Mottramite (green) with chrysocolla (blue) from Mono County, California, USA](/Images/godic/202501/28/Mottramite-Chrysocolla-2477101526.jpg")
![Orange wulfenite on dark grey mottramite from Gila County, Arizona, USA](/Images/godic/202501/28/Wulfenite-Mottramite-245351526.jpg")
![Calcite (white) covered by green mottramite from Tsumeb, Namibia](/Images/godic/202501/28/Calcite-185531526.jpg")
Mottramite is an orthorhombic anhydrous vanadate hydroxide mineral, PbCu(VO4)(OH), at the copper end of the descloizite subgroup. It was formerly called cuprodescloizite or psittacinite (this mineral characterized in 1868 by Frederick Augustus Genth). Duhamelite is a calcium- and bismuth-bearing variety of mottramite, typically with acicular habit.