Specimens: tripoli and chert

Call Number: 
0042
Date: 
1955
Notes: 

Alexander County, Illinois Tripoli on left chert on right. This is Clear Creek Chert from Olive Branch, Alexander County, Illinois;
1 photograph and negative;

Keywords: 

Clear Creek chert--Illinois--Alexander County
Specimen--tripoli
Specimen--chert

ID: 
28

 

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