5.2.5 Criteria
Tonnage Factor
11.5 cubic feet per ton. This historical figure was
confirmed by independent tests completed for Harmony Canada by Chemex Labs
of Vancouver and has been validated by historic production data.
Cutting Factor
Assays greater than 1 ounce gold per ton are cut to 1 ounce
gold per ton. This is a historical figure, which over time has proven appropriate.
Statistical studies completed by Harmony Canada based on all samples taken in
the D-Shaft area within and around mineralisation show that the 1-ounce per ton
cutting factors lies between the 91
st and 96th percentile. The 95th
percentile is a
generally acceptable cutting level for Canadian lode gold deposits (Vallée 1992,
p.85-86) thus the statistical analysis also confirms the applicability of the historic
cutting factor.
Measured Resource
Vertical extensions up to 50 feet above and below
development and/or stoping. No strike extensions to open ground are included.
Indicated Resource
Maximum vertical extensions of 50 feet beyond measured
blocks. Up to 50 feet along strike and 75 feet vertical projection from drill hole
information.
Inferred Resource
Maximum vertical and strike extensions of 75 feet to