MICREX DEVELOPMENT CORP.
A mineral exploration and development company operating in Canada and the United States
TSX Venture Exchange symbol "MIX"
SEC 12 g (3) Exemption 82-4281
For immediate release
December 1, 2004
Micrex Reports Significant Increase in Gold Potential at Bighorn
Micrex Development Corp. announced today that it has received preliminary results from Apex Geoscience Ltd. on the recent exploration program at the Bighorn Property in northern British Columbia.
Based on assays received from the fall program two new mineralized veins have been discovered on the property in addition to new data on the extent of gold mineralization on the Lawson vein.
Limited mining was carried out at Bighorn between 1921 and 1935 on a single quartz vein. The gold bearing vein, called the Lawson Vein, has been traced for a strike length of 920 m. (2990 ft.) and a vertical distance over 460 m. (1495 ft.).
The vein has been accessed at different elevations by four drifts. The upper three have been previously mapped and sampled while the lowest has been confirmed to a length of 300 m. (975 ft.) with no other examination due to water in the tunnel.
Previous mining and sampling was focused on the quartz vein material. New sampling has demonstrated that the altered bedrock next to the Lawson vein also contains significant gold mineralization. Sampling of the hangingwall and footwall alteration returned assays of 5.32 g/t over 80 cm, 5.01 g/t over 60 cm, and 2.6 g/t over 30 cm. These new results are encouraging and suggest the overall potential of the Lawson vein has not been fully resolved.
Two other important gold discoveries have been made outside of the area of the Lawson vein.
Quartz veins with associated wallrock alteration have been discovered within a short distance of the Lawson vein. One vein has assayed 4.2 g/t and the other has assayed 5.93 g/t. Alteration associated with the veining assayed 0.980 g/t Au across 1.22 metres.
Significant alteration is present at both localities and further sampling is required in these areas. These new discoveries lie within a region previously identified as anomalous by Micrex in 2001 and 2002. Prior results include gold assays as high as 121.16 g/t (3.9 oz.), silver assays as high as 56.9 g/t (1.83 oz), previously reported in the news release of June 26, 2002.
The possibilities for the Bighorn Project have expanded significantly over the last two years as each exploration program to date has located new gold potential for this property.
Micrex continues to work with their consultants to design a comprehensive exploration program that will include further fieldwork including ground geophysics and drilling for the spring of 2005.
Further information may be obtained from Perry Meszaros or S.E. Marshall at (780) 448-0922
or email at mixinfo-1@micrex.net
MICREX DEVELOPMENT CORP.
Peace River Diamond Property • Burmis Magnetite/Titanium Property • St. Charles de Bourget Magnetite/Titanium Property • Fort Steel Placer Property • Bighorn Gold Mine • Banks Gold Mine • Mount Royal Gold Mine • Deadwood Gold Mine • Sunburst Gold Property
THE TSX VENTURE EXCHANGE HAS NOT REVIEWED AND DOES NOT ACCEPT RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE.