Fluorspar District of Illinois Historical Document Folder: Illinois Fluorspar Investigations File: Illinois Fluorspar Investigations I - A General Geology.pdf UID: 300
Dates
Dataset Reference Date
2015-09-28
Info Date
1942-11-16
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Illinois Fluorspar Investigations File: Illinois Fluorspar Investigations I - A General Geology.pdf Type: Manuscript Author: Weller, J. M. UID: 300
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Illinois Fluorspar Investigations File: Illinois Fluorspar Investigations I - A General Geology.pdf Type: Manuscript Author: Weller, J. M. UID: 300
Fluorspar District of Illinois Historical Document Folder: Illinois Fluorspar Investigations File: Illinois Fluorspar Investigations I - A General Geology.pdf UID: 300