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COVER

De Grey has drilled more than 250,000m
in just over 12 months since making the
Hemi discovery

De Grey

proves the

ultimate

sunshine story

by Dominic Piper

e Grey Mining Ltd’s Hemi find was the standout discovery said. “It was only discovered relatively late compared to
Din a standout year for gold exploration but if things go the others, but it is only 200m from Brolga, and that is from
according to plan, it will be just the start of the story. the first new intrusion we’ve drilled since February; that is
New discoveries rarely gain unanimous support of the exciting.”
analyst community so early in the piece but by February – The plan for this year is to continue with RC and diamond
just three months after the discovery hole was drilled into the drilling at Hemi and its five zones – Falcon, Aquila, Brolga,
intrusives at Hemi – Australia’s gold analysts were singing Brolga South and Crow ahead of the maiden resource in
in unison about the potential for a 2 moz orebody on the mid-2021. However, the strategy is to deploy several teams;
project. one dedicated to Hemi but others committed to the Greater
By mid-year, those estimates were up to at least 4 moz gold Hemi area, regional intrusive targets and the existing shear
and Hemi was certified as not only a company-maker for De zone 2.2 moz resource Mallina already boasted.
Grey but the first Tier 1 discovery of the new decade. “We definitely haven’t finished with Hemi or near Hemi,”
For Hemi to reach that status, De Grey will have to deliver on Jardine said. “There is still more to do at depth at all five
the initial promise. Managing director Glenn Jardine knows deposits and there are way more near-surface intrusives to
2021 will be the first step on delivering on early potential. find in the immediate vicinity of Hemi.
The company has set itself a mid-year target for a maiden “A really big proportion of drilling is going to Hemi but we
resource at Hemi but part of the challenge is balancing won’t forget about the Greater Hemi area and the regional
development progress with answering the many regional work beyond Hemi to prove there is more out there.”
questions which still exist around a style of mineralisation De Grey will continue drilling known intrusions in the Greater
unheard of in Western Australia just over a year ago. Hemi area, including targets Scoody, Shaggy, Antwerp and
“It is about getting the balance right; wanting to go the market Alectroenas which technical director Andy Beckwith has
mid-year with a high level of confidence in the resource and long been keen on. The aircore drilling will be followed up by
a minimum production scenario but also demonstrating that RC drilling in the first half of the year.
first resource is not the end of it,” Jardine told GMJ. “Since November last year we have focused exclusively on
Just how much more potential Hemi and the regional Mallina Hemi,” Jardine said. “But there is plenty of potential around
project was reinforced in November when the company regionally.”
confirmed the Falcon prospect as a fifth intrusion zone at Jardine said De Grey’s knowledge of Hemi would allow it to
Hemi. First identified in September, Falcon has now been assess targets quickly.
scoped over a 1,000m strike and to 300m depth with a hit of “It is not going to necessarily be easier to find them, but
31m @ 3.3 g/t gold from 101m. we are using our knowledge of Hemi to tell us what sort
“We are still seeing potential to make Hemi bigger again and of intrusive we are drilling. We can apply geochemistry
Falcon is an example of how it is still expanding,” Jardine independent of the gold assay so will know if we are in the

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