Canadian Mining Journal


BASE METAL MILLING: Halfmile Lake samples compatible with Brunswick mill

NEW BRUNSWICK - Bench tests on ore samples from Toronto-based Kria Resources' Halfmile Lake project indicate t...

NEW BRUNSWICK – Bench tests on ore samples from Toronto-based Kria Resources‘ Halfmile Lake project indicate that the ore is similar to that from the No.12 mine and could be treated at the Brunswick concentrator that belongs to Xstrata Zinc.

Composites from Halfmile Lake and Brunswick ores were tested separately following the flowsheet and reagent dosages used at the Brunswick mill. The test results show that copper flotation kinetics are the same for the two composites from Halfmile Lake and No.12, while Halfmile composite lead and zinc flotation kinetics is generally faster compared to the Brunswick composite. In addition, two blended tests of Brunswick and Halfmile composites (80:20 and 90:10) also indicate that Halfmile Lake ore is amenable to the Brunswick process.

Kria announced in November 2009 that it was in discussions with Xstrata Zinc to use the Brunswick mill to toll process ore from its Halfmile Lake property once it is advanced to production. Kria intends, upon receipt of governmental permits, to begin development activities at the Halfmile Lake site in order to begin supplying ore to Xstrata’s Brunswick concentrator by early 2011, assuming an agreement with Xstrata is successfully completed next month.

The Halfmile Lake technical report is posted at