CERTIFICATE OF ANALYSIS - 90 GRADE MAGNETITE


Company: Craigmont Mines Date Reported: April 24, 2003
Composite: MAR 03/03 Project: 0302503


Sample: 90 grade Composite MAR03/03
Magnetic Content: 98.2 %
Density: 4.77 g/cm3
Size Analysis: 92.2 % passing 53 microns (270 mesh)
87.6 % passing 44 microns (325 mesh)
82.1 % passing 37 microns (400 mesh)
23.4 % passing 10 microns
Approved by: Alice Shi, Ph.D.


    METHODS
Magnetic Content
A weighed portion of the composite sample (ca 25 g) was passed through the Davis Tube at a field strength of 900 Gauss with a retention time of 4 minutes. The tailing was then treated for another 2 minutes and the two concentrates were combined, dried and weighed.
Density
A weighed portion of the composite sample (ca 250 g) was placed in distilled water in a tared 200 mL volumetric flask. The flask contents were deaerated by boiling gently for 15 minutes, then cooled, made to volume and weighed.
Size Analysis
A weighed portion of demagnetized composite sample (ca 50 g) was wet screened at 400 mesh. The +400 mesh fraction was dried and then dry screened at 270, 325 and 400 mesh. The individual fractions were weighed. The percentage passing 10 microns was determined with a MicroTrac Particle Size Analyzer on a demagnetized portion of the composite sample.