Micrex Development Corp: Rare Earth Mineral Results from St. Charles Québec Deposit

Micrex Development Corp. (TSX VENTURE:MIX) announces assay results from the St.
Charles Quebec Magnetite/Rare Earth/Titanium/Apatite/Vanadium deposit.


A large international fertilizer producer has conducted in house assays on P2O5
(phosphate) of several drill cores, as follows.




Sample No.                   Hole No.   Interval    P2O5%    Fe2O3%    TiO2%
1                             99-07 4        5 m    9.22     47.86    16.54 
2                             99-07 5        6 m   10.37     41.56    11.66 
3                             99-07 6        7 m   10.02     44.78    14.61 
4                             99-07 8        9 m    9.79     46.81    15.76 
5                            99-07 11       13 m    7.91     43.21    13.79 
6                            99-07 14       15 m    8.67     44.49    14.86 
7                            99-07 15       16 m    7.05     41.59    13.50 
8                             99-04 3        5 m    9.68     49.99    17.61 
9                             99-05 7       13 m    9.64     48.80    16.74 
10                           99-05 13       16 m    8.54     44.29    12.59 
----------------------------------------------------------------------------
Average                                             9.09     45.34    14.77 



From these whole rock analysis, and assuming approximately 40% P2O5 , an apatite
content of 22% is calculated, at 85% BPL. These assays increase confidence on
historical drilling and testing results which yielded 10% to15% P2O5 over a 60
metres section. Apatite is used by the fertilizer industry for the production of
phosphoric acid and superphosphate. 


Mr. S.E. Marshall, President and CEO, states "we are very encouraged with these
results... The BPL running at 85% is one of the highest in the industry and
confirms our belief in that the property characteristics are suitable for a
variety of end users".


BPL (Bone Phosphate of lime) is a reference to the amount (by weight percentage)
of calcium phosphate in an ore body

Apatite concentrates also assayed a total rare-earths content of 2,600 parts per
million (ppm) and 2,800ppm (0.26% and 0.28%). The rare earth elements are
dominated by lights rare-earths plus yttrium. Rare earth elements, contained in
apatite, would be recovered as by-product.


As previously announced, assays of ilmenite concentrates, carried in-house by a
titanium producer, indicated a titanium dioxide (TiO2) of 45.13%. This suggest
stoechiometric ilmenite, suitable for pseudorutile production, rather than the
less valuable although more common hemoilmenite. Iron (Fe2O3) content was
assayed at 57.44% , and vanadium oxide (V2O5) up to 0.42%.


Although the Company considers the historical assay results and pilot plant test
to be reliable, readers are cautioned that a report that would meet current NI
43-101 Standards that documents and confirms these historic results has not been
constructed.


Micrex Development Corp. (TSX VENTURE:MIX) is a mineral exploration company
based in Alberta, Canada with mining properties in North America. Visit
www.mixcorp.com for further details. Current focus is on the St. Charles de
Bourget magnetite / rare earth property in Quebec.


This press release has been reviewed by M. Rejean Girard, geologist and head
director of IOS Services Geoscientifiques Inc. and the Company's Qualified
Person for this project under the meaning of NI 43-101.


MICREX DEVELOPMENT CORP.

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


FORWARD LOOKING STATEMENTS

Certain statements in this news release are "forward-looking statements", which
reflect management's expectations regarding its property and business
operations. All statements other than statements of historical fact contained in
this news release are forward-looking statements. Such forward-looking
statements involve risks and uncertainties, as they reflect management's current
beliefs and are based on information currently available to management. Actual
results may differ materially from those anticipated in the statements made. The
forward-looking statements are expressly qualified in their entirety by this
cautionary statement. The forward-looking statements are made as of the date of
this news release and Micrex assumes no obligation to update or revise them to
reflect new events or circumstances except as expressly required by applicable
securities law. Further information regarding the uncertainties and risks can be
found in the disclosure documents filed by Micrex with the securities regulatory
authorities, available at www.sedar.com.


SEC 12 g (3) Exemption 82-4281