Citation: Bellezza, M.; Franzini, M.; Larsen, A. O.; Merlino, S.; Perchiazzi, N. (2004). Grenmarite, a new member of the gotzenite-seidozerite-rosenbuschite group from the Langesundsfjord district, Norway: definition and crystal structure. European Journal of Mineralogy, 16, pp. 971-978.