an Entity references as follows:
Alexander von Volborth/Aleksandr Fedorovich von Volborth (born 1800, Mogilev - died 1876, Kiev), was a Russian Empire palaeontologist. Volborthite, a mineral containing copper and vanadium and first found in 1838 at the Sofronovskii Copper Mine near Perm in the Urals, was named after him.