Ms. Nicole Brewster reports
RENFORTH RESOURCES INC. RECEIVES POSITIVE INITIAL QEMSCAN CHARACTERIZATION AND LIBERATION ANALYSIS RESULTS AT VICTORIA SULPHIDE NICKEL POLYMETALLIC IN QUEBEC
Renforth Resources Inc. has provided an update to shareholders on positive results from the company's recently completed mineralogical characterization work on representative core samples taken from within the 2.5-kilometre drilled strike of the company's 20 km long Victoria nickel sulphide polymetallic structure on the company's wholly owned, approximately 300 square km, Malartic Metals package near Malartic, Que.
Renforth conducted a comprehensive mineralogical assessment on a set of 18 samples, selected from the west, central and east portions of the 2.5 km drilled area. Samples selected of the ultramafic, the calc-silicate and the graphitic mudstone were selected from each area for lithological representation in order to characterize the general rock type, as opposed to selection based upon grade or study based upon grade. These samples were retrieved from the company's secure core storage and sealed and securely transported to the facilities of ALS where they underwent a mineralogical assessment with an emphasis on the elemental deportment of copper, nickel, zinc and sulphur within their respective minerals.
Findings of this initial testwork include:
-
The 18 samples assayed between 0.01 to 0.16 per cent copper, where 90 to 100 per cent of the copper contained in the samples was in chalcopyrite, with the balance in bornite.
-
The 18 samples assayed between 0.03 to 0.27 per cent nickel, where 2 to 98 per cent of the nickel was mostly contained in pentlandite and violarite. Most of the remaining nickel in these samples was in solid solution form in pyrrhotite and pyrite. In samples containing over 0.1 per cent nickel, over half of the nickel content was present in nickel-sulphide minerals.
-
Zinc grades varied widely for the 18 samples, between 0.01 and 1.5 per cent zinc. Samples higher in copper were generally also higher in zinc. Zinc grading over 0.1 per cent was contained entirely in sphalerite, lower grade samples contained zinc in chromite and steel.
- The 18 samples measured between 0.3 to 8.7 per cent sulphur. Sixty to 95 per cent of this sulphur was present as pyrrhotite, a smaller fraction present as pyrite and the remainder was distributed among nickel sulphides, chalcopyrite, sphalerite, galena and molybdenite.
- A comparison of copper and nickel sulphides demonstrates that some samples were rich in copper and zinc sulphides, some in nickel sulphides and some samples in all three, suggesting distinct flotation conditions would likely be required for each feed type in order to produce high-grade copper and/or nickel and/or zinc concentrates.
-
Samples were subject to a single grind size and underwent a bulk mineral analysis with liberation estimate protocol. This process found that it was possible to liberate copper, nickel and zinc by flotation, however, further metallurgical testing and grind size determination work is required.
"We are very happy with these initial results which demonstrate the recovery of saleable metals via grinding and flotation, a standard process, is possible at Victoria. Further testing is of course required and should incorporate our prior positive findings of the ability to concentrate the mineralization from Victoria via TOMRA sorting, which we expect will also positively impact flotation results. Essentially, the combined initial TOMRA testing and the lab work announced here demonstrate that Victoria, in our opinion, looks like it will be metallurgically viable and therefore merits continued exploration spending. This critical early stage assessment has been possible due to grant support previously announced which Renforth has received from the government of Quebec," states Nicole Brewster, president and chief executive officer of Renforth.
Samples were selected from Renforth's secure core storage facility in Val d'Or, Que., sealed and transported to the facilities of ALS Metallurgy in Kamloops, B.C. Each sample
was
crushed
and
ground
to
a
nominal
particle
sizing around 106 micrometres
K
80.
Then,
each
ground
sample
was
sized
via
wet
screening
and
portioned
into two sized fractions: greater than 53 micrometres and less than 53 micrometres. The mineralogical analysis was conducted by Qemscan
BMAL (bulk
mineral
analysis
with
liberation
estimation)
protocols
on
each
size fraction to determine
the
mineral composition, key element deportment and
to estimate
the overall liberation and association characteristics.
Chemical
composition
of
the
18 samples
was
measured
using
four-acid digestion ICP
scan (ME-
MS61).
Francis Newton, PGeo, OGQ, a qualified person pursuant to the requirements of National Instrument 43-101, has reviewed and approved the technical contents of this press release.
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