Fluorspar District: Revision history

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June 8, 2021

June 2, 2021

April 14, 2021

September 30, 2020

August 20, 2020

  • curprev 09:3409:34, August 20, 2020Alan.Myers talk contribs 2,263 bytes +2,263 Created page with "==INTRODUCTION== The Illinois-Kentucky District (IKFD) was, for most of the twentieth century, the primary source of fluorspar for the USA. The strategic importance of fluorsp..."