Pakeagama Lake pegmatite, Red Lake, Kenora District, Ontario, Canada

Pegmatite rich in Li, Cs, Rb, Ta, Sn etc., 170km north of Red Lake.

Ref.: http://www.houstonlakemining.com/news/article2.html

Tindle, A.G., Breaks, F.W., and Selway, J.B. (2002) Tourmaline in petalite-subtype gramitic pegmatites: evidence of
fractionation and contamination from Pakeagama Lake and Separation Lake areas of northwestern Ontario, Canada. Canadian Mineralogist: 40: 753-788.