Eclipse reveals broader Greenland critical minerals bounty
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penny taylor
Eclipse Metals has breathed new life into a centuries-old mine by uncovering high-quality fluorite as well as a range of high-tech critical minerals at its historic Ivigtût project in southern Greenland.
New analysis results from two diamond drill holes show that the project may be much more than the ancient fluorite deposit once thought, and Ivigtût is now reinterpreted through a modern critical minerals lens.
The holes, reaching a total of 503 meters, were completed in October 2025 in the historical open pit environment. The program returned standout marks, including a 10-meter strike rating of 32.2 percent flume from 106 yards and a separate 5-foot slice from 151 yards containing 23.1 percent flue.
Fluorspar, the main ore of fluorine, is classified as a critical mineral in the United States and is heavily dependent on imported supply, adding strategic value to secure Western-connected resources.
‘These results strengthen the company’s position in Greenland.’
Carl Popal, chairman of the board of directors of Eclipse Metals
But fluorine grades aren’t the biggest explanation. Ivigtût was already recognized as one of the world’s leading fluoride deposits, dominated by the minerals cryolite and fluorspar. The bigger prize may be what emerges alongside these minerals, with gallium, rubidium, niobium, tantalum, hafnium, yttrium, and high-grade fluorine now joined by polymetallic mineralization.
One hole returned 37 parts per million (ppm) of gallium grading 122 m from the surface; this includes 56.8 ppm gallium from 15 m grade and 22.5 percent fluoride from 105 m. The second hole returned 77 m grading 41.4 ppm gallium from 223 m, including 13 m at 64.4 ppm gallium from 287 m and a summit 1 meter sample that returned 101 ppm gallium.
One prominent sample also carried 1065 ppm rubidium, 54.3 ppm silver and 2.9 percent fluorine, highlighting a broader critical mineral association.
Analyzes also detected high levels of rubidium, niobium, tantalum, zirconium, hafnium and yttrium, as well as tin and polymetallic traces of copper, lead, zinc and silver.
Management believes the results indicate multiple overlapping mineralized areas rather than a simple fluoride deposit, reinforcing the reinterpretation of Ivigtût as a broader system of critical minerals.
Depending on future mineralogical and metallurgical studies, gallium may emerge as a valuable byproduct alongside fluorine.
Carl Popal, chairman of the board of Eclipse Metals, said: “These results reinforce our view that Ivigtût is much more than a historic cryolite mine. Minerals and elements that were once secondary or not routinely evaluated are now increasingly important due to their roles in semiconductors, defense systems, advanced manufacturing, industrial chemicals, clean energy technologies, and secure Western supply chains.”
Ivigtût was the world’s largest known natural source of cryolite, a fluorine-containing mineral critical for aluminum production, with 3.8 million tonnes mined between 1865 and 1985.
The latest results show that historical mining has largely focused on cryolite and fluorspar, leaving a wider group of strategic minerals unexplored by modern standards, even though their importance has increased significantly since mining ended.
The project sits alongside Eclipse’s Grønnedal rare earth element project in Southern Greenland; here the company recently more than doubled the supply to 208 million tonnes at 0.72 percent total rare earth oxide.
The company’s complementary Greenland assets now provide access to rare earths, fluorite and other strategic minerals.
With new analyzes in hand, management is advancing geochemical, mineralogical and metallurgical studies to assess the distribution and recoverability of a broader range of critical minerals while identifying priority mineralized areas.
If future studies confirm economic recovery pathways for newly identified metals, Ivigtût could transform from a historic fluorspar mine to a strategically important, multi-product critical minerals project.
The next important catalysts now relate to metallurgy, resource definition, and proving that the broader system extends beyond the tested areas. If this work accumulates, Eclipse may have done more than revisit a historic Greenland mine; It may have revealed a much broader strategic mining opportunity hiding in plain sight.
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