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End of intrusion of small dike of pegmatite at Crown Mica mine. Custer County, South Dakota. 1923.

Dates

Date Taken
1923

Summary

End of intrusion of small dike of pegmatite at Crown Mica mine, near Custer. Custer County, South Dakota. Before 1923. Plate 27-B in U.S. Geological Survey. Bulletin 740. 1923.

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Data Owner :
U.S. Geological Survey

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sdb00092.jpg thumbnail 7.06 MB image/jpeg

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Identifiers

Type Scheme Key
name photoLibrary sdb00092
number photoLibrary 32724
batch photoLibrary btch415
number_in_book photoLibrary 92

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