Fluorspar District of Illinois Historical Document Folder: Fluorspar Analytical Work File: Fluorosilicates.pdf UID: 95
Dates
Dataset Reference Date
2015-09-28
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Fluorspar Analytical Work File: Fluorosilicates.pdf Type: Memorandum/Notes UID: 95
Summary
Historical Fluorspar District Document from Industrial Mineral Section Records Folder: Fluorspar Analytical Work File: Fluorosilicates.pdf Type: Memorandum/Notes UID: 95