From the Director

ISGS Publications

Circular 584: Directory of Illinois Mineral Producers, and Maps of Extraction Sites

Circular 584: Directory of Illinois Mineral Producers, and Maps of Extraction Sites

$9.00

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Cover of C588: Geochemical and Petrographic Analysis of the Sparks Hill Diatreme and Its Relationship to the Illinois-Kentucky Fluorspar District

Circular 588: Geochemical and Petrographic Analysis of the Sparks Hill Diatreme and Its Relationship to the Illinois-Kentucky Fluorspar District

$10.00

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Illinois State Geological Survey

Richard C. Berg, Director
615 E. Peabody
Champaign, IL 61820
217-333-4747
info@isgs.illinois.edu

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