13 Feb Star Zinc Initial Drilling Update
RNS Number : 7274E
Galileo Resources PLC
13 February 2018
Galileo Resources Plc
(“Galileo” or “the Company”)
Star Zinc Initial Drilling Update
Galileo is pleased to provide the following initial drilling update on the Star Zinc project (“Star Zinc”) in Zambia. Galileo has a 51% interest in Star Zinc (with a right to increase this to an 85% interest). This update covers the first 750 metres (m) of a proposed estimated 1500m drilling campaign at Star Zinc.
· More than 750 m diamond core drilling (19 holes) completed to date on Star Zinc to depths of up to 70m
· Thirteen holes (vertical and inclined) intersected high-grade zinc (Zn) mineralization (willemite-hematite-calcite) over a strike length, to date, of approximately 100m
· Based on preliminary hand-held XRF spectrometry, the high-grade Zn intersections range from average a 15% Zn to 28% Zn over 7m to 15 m down hole
· XRF point analyses obtained of up to 52% Zn
· Low to medium-grade Zn mineralised intervals also intersected
· The ore body remains open and several other peripheral and outlying geophysical and geochemical anomalies remain untested
· The area presently being drilled lies approximately at the centre of a newly delineated 4.4kilometre (km) long geochemical anomaly: +100ppm Zn (based on hand held XRF apectrometer assays).
· Next exploration phase is to continue drilling, embark on modelling of the data, in order to delineate the high grade mineralisation and metallurgical testing
a average of regular spaced point readings (3 times) over the mineralised intersection . Whole length core samples are being submitted for independent and complete assay and will be announced in due course
Colin Bird, Chief Executive Officer, said: “This drilling programme has to date produced encouragingly high grade zinc intersections, that is leading us to revise our understanding of the geology of the deposit from that historically described by Charter Consolidated and others. We will continue drilling and embark on data modelling, in order to create a signature for and delineate the distribution of the various grades of mineralisation.
The historic model of mineralisaion of Star Zinc,based entirely on vertically drilled holes, suggested the mineralisation forms two irregular tabular lenses dipping shallowly both east and west of the Pit. Although the geological and structural controls on mineralisation are still to be fully understood, the latest drill data suggest the highest grade and thickest mineralizations are associated with a series of E-W faults (possible feeders.)”
This announcement contains inside information for the purposes of Article 7 of Regulation 596/2014.
Andrew Sarosi, Director of Galileo, who holds a B.Sc. Metallurgy and M.Sc. Engineering, University of Witwatersrand and is a member of the Institute of Materials, Minerals and Mining, is a “qualified person” as defined under the AIM Rules for Companies and a competent person under the reporting standards. The technical parts of this announcement have been prepared under Andrew’s supervision and he has approved the release of this announcement.
You can also follow Galileo on Twitter: @GalileoResource
For further information, please contact:
Galileo Resources PLC
Colin Bird, Chairman
Andrew Sarosi, Executive Director
Tel +44 (0) 20 7581 4477
Tel +44 (0) 1752 221937
Beaumont Cornish Limited – Nomad
Roland Cornish/James Biddle
Tel +44 (0) 20 7628 3396
Beaufort Securities Limited – Broker
Jon Bellis/Elliot Hance
Tel +44 (0) 20 7382 8416
The Star Zinc Project
The Company recently acquired a 51% interest (right to potential 85% interest) in the Star Zinc project, a historical, high-grade zinc open pit mine operated intermittently in the 1950s to 1990s. The Zn mineral is predominantly willemite (zinc silicate) hosted in mainly limestone and dolostone (dolomitic rock). The Star Zinc project has a 4-year exploration licence commencing 14 August 2014. The Project is in the process of applying for a renewal of the licence for a further 4-year period.
An Independently verified non-JORC compliant hard rock resource has been estimated at 275,166 tonnes @ 20.2% Zn with a cut-off grade of 14% Zn (“pragmatic case”) based on historical approximately 59 diamond drill holes for total 2,578m. At cut off grade of 12% Zn non-JORC resource tonnage increases (18%) to 325,941 tonnes @19.1% Zn (11% increase in Zn metal).
In addition, karstic fill deposits and red soil are locally heavily mineralised with detrital willemite and supergene zinc minerals, which may provide further potential increase to the known resource.
Mineralisation is interpreted to form two shallowly dipping lenses east and west of the open pit, mineralisation of which is around 40m deep, based on the independent model used for the resource calculation.
A number of sub vertical structures recognised in pit outcrop suggests possibility of both vertical and horizontal control of Zn mineralisation.
The Willemite at Star Zinc, fluoresces a bright green in short wave UV light, a mineral characteristic that may find an application in optical sorting. Willemite also, is denser (3.9 g/cm3) than the dolomitic (2.9 g/cm3) host rock, a feature that may find an application in heavy medium separation process, with the potential for reducing the acid consuming dolomite in the ore.
Preliminary metallurgical testwork indicates that the ore is amenable to acid leaching with more than 90% of the zinc leached into solution.
The Company has committed to undertake an 18-month work programme (“Programme”) at a cost of US$250,000 using reasonable endeavours to complete a preliminary economic assessment of Star Zinc (“PEA”), following which further new shares in Enviro Zambia, the owner of the Project will be issued to Galileo to increase its aggregate equity interest in therein to 85%; accordingly it expects the Programme to meet this obligation.
Detrital loose fragments or grains that have been worn away from rock
Calcite mineral of calcium carbonate
Dolomite mineral composed of calcium magnesium carbonate
Dolomitic pertaining to dolomite
Floats pieces of rock that have been removed and transported from their original outcrop
Hematite a reddish-black mineral consisting of ferric oxide. It is an important ore of iron.
Karstic pertaining to landscape underlain by limestone (calcium carbonate), which has been eroded by dissolution, producing ridges, fissures and so on
Leaching chemical process of solubilising metals in rock into solution
ppm parts per million
XRF Spectrometer analytical instrument for determining chemical composition using x-ray fluorescence
Supergene pertaining to processes or enrichment that occurs relatively near surface
Willemite zinc silicate ore mineral
This information is provided by RNS
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