Citation: Brugger, J.; Armbruster, T.; Meisser, N.; Hejny, C.; Grobety, B. (2001). Description and crystal structure of turtmannite, a new mineral with a 68 Angstrom period related to mcgovernite Note: z-coordinate of Mn12 has been modified. American Mineralogist, 86, pp. 1494-1505.