| Simmons, W. B., Falster, A. U., Laurs, B. M. (2011) A survey of Mn-rich yellow tourmaline from worldwide localities and implications for the petrogenesis of granitic pegmatites. The Canadian Mineralogist, 49 (1) 301-319 doi:10.3749/canmin.49.1.301 (n.d.) Collection, Natural History Museum Vienna. |