Previous drilling has established a resource estimate for two critical minerals on Commerce Resources’ Upper Fir deposit.
While focused on its Ashram rare earths deposit in Quebec, Commerce Resources TSXV:CCE has plans for its other critical minerals project. Under a memorandum of understanding announced July 11, a one-tonne sample from the company’s Upper Fir tantalum-niobium deposit in British Columbia would be tested for suitability under a proprietary separation process developed in Estonia by Alexander Krupin.
The sample should arrive within the next several weeks, with tests expected to begin immediately afterward. The goal would be to process Upper Fir feed stock into independent tantalum and niobium products.
Krupin’s background includes over 35 years in this area, including more than 15 years processing high-grade tantalum and niobium ore concentrates, Commerce stated. “His research activities have developed new technologies for the chemical upgrading of low-grade tantalum and niobium ore concentrates.”
Based on a tantalum price of $381 a kilo, Upper Fir has a 2013 resource showing:
- - indicated: 48.41 million tonnes averaging 197 ppm Ta2O5 and 1,610 ppm Nb2O5 for 9,560 tonnes Ta2O5 and 77,810 tonnes Nb2O5
- - inferred: 5.4 million tonnes averaging 191 ppm Ta2O5 and 1,760 ppm Nb2O5 for 1,000 tonnes Ta2O5 and 9,600 tonnes Nb2O5
The road-accessible east-central B.C. project has transmission lines and CN Rail crossing the western part of the 105,373-hectare property, and a 20-MW run-of-river electricity facility situated adjacently.
Commerce has found niobium in Quebec too, where samples showed very high grades up to 5.9% Nb2O5 on the company’s property about a kilometre from Ashram. Nevertheless the advanced-stage rare earths deposit remains the company’s priority, as it advances towards pre-feasibility. Among Ashram’s features are high grades, an impressive distribution of magnet feed elements and, crucial to the REE space, relatively simple mineralogy amenable to commercial processing. The deposit shows potential for a fluorspar byproduct as well.
Last month Commerce signed an MOU with Ucore Rare Metals TSXV:UCU to assess the suitability of Ashram concentrate for a proprietary method of REE processing at a plant Ucore plans to build in Utah. A Colorado pilot plant has already produced an Ashram concentrate exceeding 45% rare earth oxides at about 75% recovery.
The U.S. Geological Survey lists tantalum, niobium and rare earths among the critical minerals that the United States depends entirely on imports.