Gold recoveries up to 95% achieved through conventional processes
TSX-V Trading Symbol: HRC
VANCOUVER, Sept. 9 /CNW/ - Helio Resource Corp. ("Helio" or the
"Company") (TSX-V: HRC) is very pleased to report the first metallurgical
testwork results from the Porcupine target at the SMP gold project.
Summary results include:
- Optimum circuit responses (% Au recoveries) as follows:
- 94.8% by Whole Ore Flotation
- 93.4% by Gravity Separation + Gravity Tailing Flotation
- 91.9% by Gravity Separation + Flotation Concentrate Cyanidation
- 89.1% by Gravity Separation + Gravity Tailing Cyanidation
- 88.9% by Whole Ore Cyanidation
- 22.0% by Gravity Separation
- Bond ball mill work index of 15.7 (metric) - "moderately hard"
- No preg-robbing activity detected
- Low cyanide consumption
- Tailings should be non-acid generating and free from environmentally
Of particular note is that in one of the whole ore floatation tests,
conducted on material with a relatively coarse grind size of 256 microns,
recoveries of 90.5% were achieved.
The results are in line with the very positive metallurgical results
previously obtained from the Kenge target, which showed gold recoveries of up
to 96% could be achieved through conventional processes (see Company press
release dated August 11, 2008).
The testwork was undertaken by SGS Lakefield Research Limited ("SGS") in
Ontario, Canada on a drill core sample from the Porcupine target. Tests
included head grade analysis, mineralogical evaluation, comminution testwork,
gravity separation, flotation, cyanidation (of whole ore, gravity tailing and
flotation concentrate) and preliminary environmental testing. Further
information and the full results of the metallurgical testwork are available
in a report from SGS available on the Company's website at
A 50kg test sample was made up of the counterpart half-core from diamond
drill hole GPD4. The intercept chosen assayed 49.63m @ 3.3g/t Au from 52.76m,
including 0.6m @ 33.2g/t Au from 66.1m and 1.8m @ 39.1g/t Au from 69.4m
(Company press release dated July 21, 2008). If all high-grade samples in GPD4
are cut to 15g/t Au, the intercept is 49.63m @ 2.2g/t Au. Head analysis of the
bulk sample from GPD4 conducted during this metallurgical testwork by SGS
indicates that the sample graded 2.4g/t Au.
The Company is very encouraged by these metallurgical test results, which
confirm that the mineralogy and metallurgy of the mineralised material at
Porcupine are very similar to that at Kenge. The results also support internal
petrological, mineralogical and analytical studies indicating that:
mineralised material from the Porcupine target has a simple mineralogy; gold
recoveries by both gravity and conventional flotation / cyanidation processes
should be high; and tailing materials should have a limited environmental
Further metallurgical testwork is planned in order to optimise grinding
sizes and flotation flowsheet configurations, together with studies of the
potential amenability of Porcupine ore to heap leaching.
ABOUT THE SMP GOLD PROJECT
Helio, through its 100% owned subsidiary BAFEX Tanzania Ltd., can earn a
100% interest in five contiguous licences, which cover a 35km strike length of
the Saza Shear Zone. The project covers the New Saza Gold Mine, which was the
second largest gold producer, behind the Geita Mine, in pre-Independence era
Since June 2006, the Company has drill-tested eleven targets, nine of
which are hosted along the Saza Shear Zone. All eleven targets have
intersected bedrock-hosted gold mineralisation, the most advanced being the
Kenge and Porcupine Targets (see the Corporate Presentation on the Home Page
of the Company's website at www.helioresource.com).
Chris MacKenzie, M.Sc., C.Geol., Helio's COO and a Qualified Person as
designated by NI 43-101, supervises the exploration at the SMP project,
including the sampling and quality assurance / quality control programmes, and
has reviewed the contents of this news release. Half core was submitted to SGS
Lakefield Research Limited in Ontario, Canada. Readers are referred to the
full report ("An Investigation of the Recovery of Gold from a SMP Porcupine
Target Sample" Project 11940-003 - Final Report dated August 28, 2009) which
is posted on the Company's website at
ON BEHALF OF THE BOARD OF DIRECTORS
"Richard D. Williams" "Chris MacKenzie"
Richard D. Williams, P.Geo Christopher J. MacKenzie, C.Geol.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as
that term is defined in the policies of the TSX Venture Exchange) accepts
responsibility for the adequacy or accuracy of this release.
For further information:
For further information: Richard Williams, (604) 638-8005 or by e-mail