Imperial Mining (TSXV:IPG) Reports Assays From Crater Lake Intersecting 308 g/t Sc2O3 over 98.6 m, Including 322 g/t over 52.8 m

Imperial Mining Group (TSXV:IPG) has announced that additional assays have been received from its Crater Lake drilling program on the TG scandium-rare earth mineralized zone. The results confirm the intersection widths of scandium-bearing olivine ferrosyenite that were previous reported. The program was completed in early September, and once all of the results are received from the lab and data compilation is completed, the company will undertake an updated 43-101 Resource Estimate for the zone. The goal of the new data is to convert the Inferred Category Resources from last year into Indicated/Measured Resources.

Peter Cashin, Imperial’s President & Chief Executive Officer commented in a press release: “The summer drilling results for the Crater Lake property continue to exceed all expectations, as they continue to confirm wide intervals of scandium and TREO+Y at the TGZ target. Drilling has now defined the Zone on 50 m sections between Sections 350N and 600N and mineralization has been traced by drilling over 600m in total strike length from surface to a vertical depth of 150 m (Figure 1). Importantly, the zone appears to get wider and higher grade with depth. We anticipate that the resource will likely increase from what was previously reported for the TG.”

Highlights from the results are as follows: 

  • Assay results from the three additional drillholes continue to return impressive grades of 98.6 (323.4’) grading 308 g/t scandium oxide (Sc2O3), including 52.8 m (173.2’) grading 322 g/t Sc2O3 and 113.7 m (372.9) grading 278 g/t Sc2O3, including 335 g/t Sc2O3 over 10.5 m (34.4’) and including 301 g/t over 16.75 m (54.9’).
  • These are the deepest cuts (150 m vertical) into the TG Zone and confirm a thickening and grade increase to the mineralization at depth.
  • Elevated levels of total rare earth oxides plus yttrium (TREO+Y) of up to 0.479% characterize the scandium-bearing horizon.
  • At a gold price of $1,775US/oz and a scandium oxide price of $1,500US/kg, the intersections represent a gold-equivalent value of 7.3 to 8.8 g/t Au.
Source: Imperial Mining Group


To date, assays for three additional holes for 648.0 m have been received (Table 2, Figure 1). All drillholes have intersected the target mafic intrusive host rock. The drilling indicates that the TG scandium Zone is doubly dipping between 830 west to 700 east, with a north-northeast strike direction. The widths of the mineralized zone vary between 55 and 135 m (180-443’) in true thickness. Mineralization is open at depth below the 200 m vertical level and along strike and appears as a thickening, conical-shaped body in cross-section.

Table 1 – Crater Lake Drilling Best Assay Results:

Hole # From (m) To (m) Interval (m) Sc (g/t) Sc2O3 (g/t) TREO+Y (%)
CL22056 34.00 47.20 13.2 180 276 0.383
  73.95 79.0 5.05 179 275 0.230
CL22058 28.6 61.75 34.43 177 271 0.440
Incl. 46.6 61.75 15.15 201 308 0.473
And 107.0 157.5 50.5 191 293 0.353
Incl. 107.0 127.0 20.0 196 301 0.359
and Incl. 131.0 157.5 26.5 206 317 0.382
CL22059 85.8 201.3 115.5 177 271 0.320
Incl. 85.8 98.54 12.74 211 323 0.457
and Incl. 111.35 164.15 52.8 210 321 0.372
and Incl. 168.25 201.3 33.05 183 281 0.307

NOTES:1 ppm of Sc metal equals 1.5338 ppm scandium oxide (Sc2O3) ; 1 g/t equals 1 ppm. TREO+Y includes oxides of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu plus Y.

Table 2 – Borehole Location Table – Crater Lake Project, Quebec

Borehole Section Easting Northing Elevation Azimuth Dip Length (m)
CL22056 400N 440730 6133700 551 305 -45 147.0
CL22058 100N 440685 6133363 533 305 -50 234.0
CL22059 600N 440992 6133751 542 305 -49 267.0
CL22060 550N 440967 6133713 541 305 -50 267.0
CL22061 400N 440815 6133629 541 305 -48 240.0
CL22062 350N 440780 6133586 541 305 -52 231.0


The above references an opinion and is for information purposes only. It is not intended to be investment advice. Seek a licensed professional for investment advice. The author is not an insider or shareholder of any of the companies mentioned above.

By Matthew Evanoff

I cover the mining industry and the best mining stocks around the world. I write about industry news, individual companies, projects, management, and profiles on industry leaders.

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