Citation: Robert, J. L.; Gasperin, M. (1985). Crystal structure refinement of hendricksite, a Zn- and Mn-rich trioctahedral potassium mica: a contribution to the crystal chemistry of zinc-bearing minerals Locality: Franklin Furnace, New Jersey, USA Note: polytype 1M. Tschermaks Mineralogische und Petrographische Mitteilungen, 34, pp. 1-14.