In the fall of 2022, Searchlight contracted the SRC to perform initial metallurgical bench-scale tests on a monazite-bearing rock sample from the Fanta Showing on the Kulyk Lake Critical Elements project. The objective was to determine if the sample could be concentrated to a commercial monazite concentrate.
The final report from SRC includes the following details on the
The mineral composition is 19.7% Monazite, 6.4% Apatite, 5.8% Ilmenite, and 68.1% other silicate minerals.
It is amenable to concentration by heavy liquid, electrostatic, magnetic separation, and flotation methods.
The coarse fraction size (greater than 0.053 mm) can be concentrated to +60% TREO by one or a combination of the beneficiation methods.
Flotation of the fine size fraction (less than 0.053 mm) can be concentrated to 49.8-52.8% TREO with three cleaner stages of flotation.
Recovery factors of 98% of the TREO and CREO were obtained from the coarse fraction sample, as well as up to 89% TREO and CREO from the fine fraction.
Notes on TREO and CREO
TREO = Total Rare Earth Oxides = Ce2O3+Dy2O3+Er2O3+Eu2O3+Gd2O3+Ho2O3+La2O3+Nd2O3+Pr6O11+Sm2O3+Tb4O7+Yb2O3
CREO = Critical Rare Earth Oxides = Dy2O3+Nd2O3+Pr6O11+Tb4O7
Searchlight is pleased with these excellent results confirming the monazite from the Fanta showing can concentrated to a commercial monazite concentrate,' stated
Sample Analysis
Searchlight engaged
The sample was collected for preliminary analysis and is not representative of all exposed mineralization, but rather represents the exposed monazite occurrence. Further work, including drilling, will be required to accurately determine the overall size and grade of the Fanta Showing, one of several zones of exposed Rare Earths and Uranium mineralization at
The testing program included the following scope of work: Chemical analysis and characterization of the Fanta sample, including ICP and X-Ray Diffraction
Comminution of the Fanta sample, including particle size distribution and heavy liquid separation
Preliminary beneficiation tests comprising gravity, magnetic separation, and flotation.
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