In your story “Metall expanding Akie discovery” (T.N.M., Oct. 24/94), about drilling by Metall Mining at the zinc-lead massive sulphide deposit of Ecstall Mining in northeastern British Columbia, only the wider intersections (of lower grade) were listed.
Considering that analysts often look at 10% combined zinc and lead as an economic threshold, it is important that minable thicknesses of such high-grade material be reported. In that regard, I note that within the thicker intersections you described, hole A-94-12
cut 9.3 metres grading 10.03% combined zinc and lead, while A-94-11 (600 metres to the north) intersected 6.4 metres of 11.38% combined zinc and lead. Christopher Graf, President
Ecstall Mining
Vancouver, B.C.
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