Niels Viggo Ussing (14 June 1864 – 23 July 1911), was a professor of Mineralogy, University of Copenhagen, Denmark. The mineral ussingite is named after this Professor.
References Ussingite: Ussingite mineral information and data. Polytech Photos - Scientific photodatabase
External links Beskrivelse til geologisk kort over Danmark, (i maalestok 1) By Niels Viggo Ussing, Victor Christian Madsen Niels Viggo Ussing - Pedigree Chart