ThomsoniteThomsonite beach, Grand Marais, Cook Co., Minnesota, USA
Latitude: 47°43'47"N
Longitude: 90°26'25"W
Famous occurrence for nodules of zeolites usually labeled thomsonite, though other zeolites, such as mesolite, are present as well. A green massive form of thomsonite named lintonite is also found here.
References
Winchell, N. H. (1898), Thomsonite and lintonite from the north shore of Lake Superior - American Geologist: 22(6): 347-349.
Hanley, F. B. (1919), New accessibility of Thomsonite Beach, Minnesota - American Mineralogist: 24: 726-727.
Dahlberg, J. C. (1962), Laura A. Linton and Lintonite – Minnesota History: 38: 21-23.
Mineral List
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