Fluorspar District of Illinois Historical Document Folder: Geochem MSS File: Notes on Chemical Testing.pdf UID: 780
Dates
Dataset Reference Date
2015-09-28
Info Date
1950-01-01
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Geochem MSS File: Notes on Chemical Testing.pdf Type: Memorandum/Notes UID: 780
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Geochem MSS File: Notes on Chemical Testing.pdf Type: Memorandum/Notes UID: 780