Selkirk Metals Corp.

Selkirk Metals Corp.
Doublestar Resources Ltd.

Doublestar Resources Ltd.

April 23, 2007 09:00 ET

Selkirk Metals Corp.: Ruddock Creek Project Positive Metallurgical Results

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - April 23, 2007) - Selkirk Metals Corp. ("Selkirk" or "the Company") (TSX VENTURE:SLK) and its joint venture partner Doublestar Resources Ltd. ("Doublestar") (TSX VENTURE:DSR) are pleased to provide the following update of the preliminary results from the 2007 metallurgical testing of representative samples of Ruddock Creek zinc-lead mineralization. The Ruddock Creek Property is located 100 km north-northwest of Revelstoke in the Kamloops and Revelstoke Mining Divisions, British Columbia.

In November, 2006 Selkirk retained SGS Lakefield Research Ltd. located at Lakefield, Ontario to conduct a series of metallurgical studies. Representative samples of the Ruddock Creek zinc-lead mineralization from three areas, the near surface E-Zone, deep E-Zone and the Creek Zone were submitted. The studies include Specific Gravity of the sulphide mineralization and host rock units, Rapid Mineral Scan of the sulphides, Acid Base Accounting, Bond Ball Mill Work Index, Heavy Liquid Separation at 3/8 and 5/8 inch feed size, Gravity separation of the fines, and flotation testing.

The mineralogical studies identified the relative abundance of the sulphides as: sphalerite (60%), pyrrhotite (18%), pyrite (13%) and galena (9%) and early indications of insignificant deleterious elements present thus eliminating many of the potential environmental problems encountered by other zinc deposits and minimizing smelter penalties.

Acid Base Accounting of the host rock, completed in preparation of driving the exploration decline this summer, has shown the wall rock to be dominantly non acid generating. This reflects positively on any future operations as the rock meets the requirements for the BC environmental standards and any secondary treatment or special handling and storage of waste rock would likely not be required.

The preliminary Heavy Liquid or Dense Media Separation (DMS) testing produced positive results. At a crush size of 5/8 inch and a specific gravity of 2.7, 34% of the feed mass or volume was rejected to the tails with only 1% lead loss and 0.3% zinc loss. This will result in significant savings both of capital and operating costs as less material will have to be processed by conventional milling. Additional testing will be completed in the future to optimize the crush and specific gravity to maximize the efficiency of the Dense Media Separation.

The first Flotation testing results have been received and again the results are very good. At a grind size of 100 microns 93.4% of the lead and 99.4% of the zinc were floated into rougher concentrates. These are very high recoveries on an initial flotation test. Additional flotation studies are being completed.

In summary the initial test work by SGS Lakefield has indicated that the Ruddock Creek mineralization has a relatively simple metallurgy. The results show that there are insignificant concentrations of deleterious or environmentally unfriendly elements, that the Heavy Liquid Separation at a coarse crush eliminated 34% of the feed mass with minimal zinc and lead loss, and that the initial flotation tests produced excellent recovery of zinc and lead into rougher concentrates.

Exploration on the Ruddock Creek Property is being conducted under the supervision of the Company's Qualified Person (as defined by NI 43-101), Jim Chapman, P.Geo.

Selkirk holds a 70% interest in the Ruddock Creek Property under the terms of a joint venture agreement with Doublestar holding the balance. Selkirk and Doublestar have signed an Arrangement Agreement which sets out the formal terms and conditions for the acquisition of Doublestar by Selkirk. (Please see news releases dated March 1, 2007 and April 12, 2007).

This release includes certain statements that may be deemed to be "forward-looking statements" within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. All statements in this release, other than statements of historical facts, that address future production, reserve potential, exploration and development activities and events or developments that management of Selkirk and Doublestar expects, are forward-looking statements. Although management believes 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. Factors that could cause actual results to differ materially from those in forward-looking statements include market prices, exploration and development successes, continued availability of capital and financing, and general economic, market or business conditions. Please see the public filings of both Selkirk and Doublestar at for further information.

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

Contact Information

  • Selkirk Metals Corp.
    Gordon Keevil
    (604) 687-2038
    (604) 687-3141 (FAX)
    Doublestar Resources Ltd.
    Alan Savage
    Chief Executive Officer
    (604) 688-7377
    (604) 688-7307 (FAX)