Cleantech's Campbell Crotser Fluorspar Project covers 250 acres in Livingston County, Kentucky, within America's most prospective Illinois–Kentucky Fluorspar District spanning 540 squared miles with 3.5 million tons of historic fluorspar production.*
A historic mineral resource estimate by Boyce Moodie III in 1974 for Cerro Spar Corporation on the Project, reported 805,841 tons grading 37.10% CaF2, 3.23% Zn, and 0.99% Pb.**
* Denny et al., Mines in the Illinois Portion of the Illinois–Kentucky Fluorspar District, ISGS Circular 604 (2020) – Production History section citing Anderson & Sparks 2012 (3.5 Mt Kentucky output **The key assumptions, parameters, and methods used to prepare this historical resource estimate are not available. The Company has not reviewed or validated the historic data, and caution should be taken as a qualified person has not done sufficient work to classify these historical resource estimates as a current mineral resource and the Company is not treating them as a current mineral resource. Find out more.
The Campbell Crotser Fluorspar Project has over 60 historic drill holes. The mineralization exhibits fault-controlled carbonate-hosted fluorite systems and excellent grade continuity. The mineralization extends from near-surface to depths of between 400 and 700 feet. Approximate length of the mineralization is 3,500 – 4,000 feet, thickness averages 12.0 feet
• Igneous centers are the engines that drove fluorite mineralization in the Illinois-Kentucky Fluorspar District with 3.5 million tons of historic Fluorspar production
• Hicks Dome and Newcastle Anomaly light up as magnetic “bullseyes”. These domes supplied the heat and fluorine-rich fluids that fed the district’s veins
• Nearly every historic mine (magenta stars) sits where a NW-SE fault intersects either a dome rim or a subsidiary NE-SW break
• Extending structures a couple of kilometers south, Campbell-Crotser is on the same mag/structural trend
According to www.statista.com, China produced over 60% of the world’s fluorspar.
US Fluorspar price has risen from approximately $300 per tonne in 2020 to over $450 per tonne in early 2025 according to https://www.statista.com/statistics/1051742/fluorspar-price-us/
Approximately 50 - 60% of fluorine (HF) demand is used to produce uranium hexafluoride (UF₆), a gaseous compound that enables enrichment of U-235 from 0.7% source to 3.5% to 5%.
Fluorspar is the key ingredient of lithium hexafluorophosphate (LiPF6), which is the most widely used electrolyte for lithium batteries.
Fluorocarbon (Hydrofluorocarbon) is a refrigerant with low melting temperature of -26.3C (HFC-134), insert, stable under pressure
Fluorine and fluoride gases play a crucial role in semiconductor manufacturing which powers Artificial Intelligence.
Deep within the rolling hills of Western Kentucky, a region with a legendary mining past, lies the story of a mineral: Fluorspar.
Fluorspar was the unsung hero of the industrial age—a critical ingredient for the steel that built our cities. This is the history of the legendary Illinois-Kentucky Fluorspar District, of the generations of miners who brought its treasures to light, and of a community built on grit and determination. From the golden age of Fluorspar to its quiet decline, and now to its rebirth as a cornerstone of American national security through its crucial uses in nuclear power, discover the enduring legacy of a vital national resource. Find out more
