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Title: Geology of microcrystalline silica (Tripoli) deposits, Southernmost Illinois /
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Volume: Information circular / Illinois State Geological Survey ; [no. 555]
Creator: Berg, Richard B., 1937-
Publisher: Champaign, Ill. : Dept. of Energy and Natural Resources, Illinois State Geological Survey,
Date: 1994.
Physical Description: 89 p. : ill., maps (1 folded) ; 28 cm.
Language: eng
Notes: Graphic artists - J. Hannah and P. Carrillo.
Editors - B. Wathen amd E. Wolf.
Contributor: Masters, John M.
Subject: Tripoli (stone)
Mines and mineral resources
Copyright Status: Public domain. Illinois state government document.