
Eclipse Metals (ASX:EPM) defined a 4.87Mt inferred resource at the Ivigtût mine in Greenland, grading 188ppm HfO2, 61ppm Ga2O3, and 147ppm Y2O3.
Eclipse Metals (ASX: EPM) defined a maiden inferred mineral resource at the Ivigtût mine in south Greenland, targeting hafnium and other critical minerals. The 4.87 million tonne deposit grades 188 parts per million hafnium dioxide, 61 ppm gallium oxide, 147 ppm yttrium oxide, and 3,380 ppm zirconium.
At a 60 ppm hafnium dioxide cut-off, the resource contains roughly 917 tonnes of hafnium dioxide, 297 tonnes of gallium oxide, 714 tonnes of yttrium oxide, and 16,454 tonnes of zirconium. Eclipse selected hafnium oxide as the controlling cut-off because it expects that element to drive the project's potential recoverable value under preliminary price, recovery, and payability assumptions.
The Ivigtût site sits about five kilometres west of Eclipse's 208 million tonne Grønnedal rare earths deposit, one of the larger rare earth discoveries in the North Atlantic. Grønnedal's inferred resource stands at 89 million tonnes grading 6,363 ppm total rare earth oxides for 567,600 tonnes of TREO at a 2,000 ppm cut-off.
In-situ gallium, hafnium, and yttrium mineralisation had not been identified at the project until 2025, when Eclipse completed a diamond drilling campaign of 176 holes totalling 9,673 metres. Bulk sampling of broken stockpiles at surface in 2023 confirmed an average gallium grade of 39.2 ppm, and elevated levels of gallium, hafnium, yttrium, and zirconium support the interpretation of a fractionated rare metal-enriched granite system.
“This maiden Ivigtût MRE is an important step in repositioning one of the world’s most significant historical cryolite mines as a modern critical-minerals opportunity,” executive chair Carl Popal said. “The next phase of work will focus on mineralogy, liberation, and metallurgical assessment to better understand the mineral hosts and potential recovery pathways.”
The project area includes both the Ivigtût critical minerals deposit and the Grønnedal rare earths deposit. It is accessible year-round through a port facility adjacent to Eclipse's accommodation and office infrastructure.
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