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Isle Royale National Park, Michigan. Agate typical of those occurring in the Tuff-breccia overlying the Greenstone Flow. 1971.

Dates

Date Taken
1971

Summary

Isle Royale National Park, Michigan. Agate typical of those occurring in the Tuff-breccia overlying the Greenstone Flow. The knife is 7 centimeters long. Circa 1971. Figure 21, U.S. Geological Survey Professional paper 754-C; Figure 76, U.S. Geological Survey Bulletin 1309.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Huber, Norman King

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Type Scheme Key
name photoLibrary hnkb0024
number photoLibrary 17086
batch photoLibrary batch68
number_in_book photoLibrary 24

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