Linear Metals Corporation

Linear Metals Corporation

April 30, 2008 07:42 ET

Excellent Mineral Recoveries Projected at Linear Metals' Cobre Grande Project

TORONTO, ONTARIO--(Marketwire - April 30, 2008) - Linear Metals Corporation (TSX:LRM) is pleased to report favorable results from initial metallurgical tests carried out on four samples from the Main Zone at its Cobre Grande Project Oaxaca, Mexico. Highlights of the results include the following projected recoveries:

- 95% copper recoveries and 83% silver recoveries projected in copper skarn

- 90% molybdenum recovery projected from molybdenum stockwork zone

Tests were carried out by SGS Lakefield Research on 4 samples, each of 30 kilograms, and each representing one of the four mineralization types at Cobre Grande, including copper-sulphide skarn, molybdenum sulphide stockwork, zinc sulphide skarn, and partially oxidized enriched copper skarn.

Each 30 kilogram sample was couriered to SGS Lakefield Research, Lakefield, Ontario, and was composed of 50 to 70 pieces of freshly quartered core collected from multiple intervals, from multiple holes, across the deposit. From a potential economic standpoint, the most important mineral zones at Cobre Grande are the copper sulphide skarn and the molybdenum stockwork zones, which combined are expected to represent over 80% of the mineralized body. Klaus Konigsmann, consulting metallurgist, oversaw the test work carried out by SGS Lakefield Research and has provided the recovery estimates presented in the table below. The flotation scoping tests at SGS comprised rougher kinetics and batch cleaner tests. Based on the results of these tests, metal recoveries into saleable concentrates have been estimated as tabulated below:

Test Results Summary
Feed Copper Feed Mo Feed Zinc grams Silver
Grade Recovery Grade Recovery Grade Recovery per Recovery
Sample Copper % % Mo % % % Zn % tonne %
Copper -
skarn 1.36 95% 0.021 60% 0.22 nil 33.0 83%
stockwork 0.05 nil 0.120 90% 0.03 nil 1.4 nil
skarn 1.44 82% 0.050 35% 0.79 nil 44.0 60%
skarn 0.37 60% 0.013 30% 3.13 70% 18.0 45%
Note: "nil" indicates that no potentially saleable concentrate could be
produced based on the material tested and projected recovery at this
time is zero.

Within the copper sulphide skarn, the most important metals are copper, molybdenum and silver and within the molybdenum stockwork zone, the most important metal is molybdenum.

Results from the initial tests on both these zones are positive and extremely encouraging. Tests on the copper skarn show estimated copper and silver recoveries of 95% and 83% respectively and a molybdenum recovery of 60%. In the molybdenum stockwork zone, estimated recovery of molybdenum goes up to 90%. Further metallurgical tests on larger volumes of mineralized rock will be required and will be carried out during the pre-feasibility stage.

With all drill results returned for drilling in the Main Zone, and the metallurgical test results reported here, work on the first 43-101 resource estimate on the Main Zone is proceeding. This work is nearing completion, with the final Scott Wilson Roscoe Postle Associates audit expected to be completed within the next week.

Brian MacEachen, President & CEO, states that "We believe Cobre Grande has an excellent chance of being developed as a conventional milling operation. The initial metallurgical test results on Cobre Grande's two most important mineralization types have exceeded our expectations. These results, combined with ongoing exploration success, point to the potential of this project to be a significant producer of copper, molybdenum, and silver."

This press release was prepared under the supervision of Linear Metals' Vice President of Exploration, Dr. Robert Page, P. Geo., who is a Qualified Person as defined under National Instrument 43-101. Dr. Page has reviewed the scientific and technical information in this press release.

Robert Page, Vice-President Exploration

Forward-Looking Information:

This release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical facts, that address future production, reserve potential, continuity of mineralization, exploration drilling, exploitation activities and events or developments that the Company expects are forward-looking statements. Although the Company believes that the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. The likelihood of future mining at Cobre Grande is subject to a large number of risks and will require achievement of a number of technical, economic and legal objectives, including obtaining necessary mining and construction permits, completion of pre-feasibility and final feasibility studies, preparation of all necessary engineering for pits and processing facilities as well as receipt of significant additional financing to fund these objectives, as well as funding mine construction. Such funding may not be available to the Company on acceptable terms or on any terms at all. There is no known ore at Cobre Grande and there is no assurance that the mineralization at Cobre Grande will ever be classified as ore. For more information on the Company and the risk factors inherent in its business, investors should review the Company's Annual Information Form at

The TSX Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

Contact Information

  • Linear Metals Corporation
    Investor Relations
    (416) 216-4708 or North America Toll Free: 1-866-376-7683