TIDMERIS
RNS Number : 6659S
Erris Resources PLC
13 March 2019
Prior to publication, the information contained within this
announcement was deemed by the Company to constitute inside
information as stipulated under the Market Abuse Regulations (EU)
No. 596/2014 ("MAR"). With the publication of this announcement,
this information is now considered to be in the public domain.
Erris Resources plc / EPIC: ERIS.L / Market: AIM / Sector:
Mining
13 March 2019
Erris Resources plc
("Erris Resources" or the "Company")
Abbeytown Metallurgical Results
Erris Resources plc, the European focused mineral exploration
company with a portfolio of zinc and base metals projects in
Ireland and gold projects in Sweden and Finland, is pleased to
announce positive results from preliminary metallurgical test work
at the Abbeytown mine project in County Sligo, Ireland.
Highlights
-- Study indicated that production of a good quality, saleable concentrate can be achieved
-- Flotation rougher test work indicated that good results could
be achieved over a broad range of primary grind sizes, even as
coarse as 80% passing 212<MU>m
-- Results demonstrated excellent recoveries including 96.2% lead and 95.8% zinc
-- High silver credits identified with 448ppm silver in the lead
concentrate and 340ppm in the zinc concentrate with no significant
deleterious elements
-- The Bond Ball Mill Work Index was 8.76kWh/t, classifying the
sample as being soft with respect to grindability indicating that
any potential development could enjoy favourable processing costs
as it would require relatively low primary milling power
requirements
-- Straightforward standard flotation process can be utilised for the recovery of concentrates
Erris Resources CEO, Anton du Plessis, said, "The results of the
preliminary metallurgical study at Abbeytown are very positive and
show that good quality lead and zinc concentrates can be produced
using a standard flotation process. Furthermore, the recoveries are
excellent, the concentrate is clean with respect to penalty
elements and the grindability characteristics of the mineralised
sample are positive. The results further reinforce our confidence
in the economic potential of the Abbeytown project."
Further Information
The Company has received results from a preliminary
metallurgical study carried out on samples from the Abbeytown
zinc-lead-silver-copper project in County Sligo, Northwest Ireland.
The metallurgical testing consisted of a bond mill index test and a
bench flotation test performed by Wardell Armstrong in Cornwall,
UK.
The sample consisted of 36.4kg of mineralised Index bed and
crinoidal limestone collected from the underground workings and
exposed mineralisation in the Abbeytown pit. Underground channel
samples, results of which were reported on 12 September 2018, were
duplicated to make up the sample. The bulk sample contained high
concentrations of lead (8.36% Pb) and zinc (13.1% Zn). The sample
also contained appreciable levels of silver (129g/t Ag). The
concentrations of some common penalty elements in the head sample
were 210ppm As, 0.12ppm Bi, 940ppm Cd, 68.4ppm Co, 3.72ppm Hg,
137ppm Ni and 158ppm Sb.
Flotation rougher test work indicated that good results could be
achieved over a broad range of primary grind sizes, even as coarse
as 80% passing 212<MU>m; recoveries were generally excellent
(>90%) to high-grade rougher concentrates (>49% Pb and
>42% Zn), regardless of grind size/reagent scheme. Optimum
results were achieved in Test FT7, in which a lead rougher
concentrate was produced assaying 69.5% Pb and 3.02% Zn at
recoveries of 96.2% and 2.6% respectively, and a zinc rougher
concentrate assaying 46.6% Zn and 0.61% Pb at recoveries of 95.8%
and 2.0% respectively.
Kinetic analysis indicated the potential for generation of a
lead flash-float concentrate. Even using a coarse primary grind of
80% passing 212<MU>m, almost 70% of the lead could be
recovered to a concentrate assaying >75% Pb after only
one-minute roughing. Cleaner testing indicated no benefit to
multiple stages of cleaning, with a single stage yielding
saleable-grade concentrates and additional stages resulting in
large losses to recovery with only very marginal upgrading; and
using a primary regrind P80 of 125<MU>m and no regrinding of
the rougher concentrates, a lead cleaner concentrate was produced
assaying 76.6% Pb and 2.69% Zn at recoveries of 95.7% and 2.1%
respectively. A zinc cleaner concentrate was produced assaying
51.8% Zn and 0.52% Pb at recoveries of 94.4% and 1.5%
respectively.
The excellent results of the preliminary metallurgy study give
confidence to the Company to continue advancing the Abbeytown
Project. It should be noted that this was a preliminary test and
that the mineralised sample material may differ from that
intersected in drilling as it contained a significant amount of
Index Bed calcarenite material with no shale present in the sample.
However, the style of mineralisation is similar across the
Abbeytown area and consists of coarse galena and sphalerite within
calcarenites, grits, limestone or shale with low amounts of
associated pyrite. Mineralisation remains open to the south of the
area of mineralisation reported in the final surface diamond
drilling results announced on 24 October 2018 and the Company will
aim to increase the known footprint of mineralisation through the
identification of additional targets south of hole ERAB005 which
contained 15.63% Zn+Pb combined and 90.68 g/t Ag over 4.1m located
375m south of the southernmost extent of the old workings.
The technical information in this announcement has been compiled
on behalf of Erris by Aiden Lavelle and Neil O'Carroll. Aiden
Lavelle (BSc (Hons), MSc, MIGI, P.Geo ) is Erris' chief operating
officer. Neil O Carroll B Eng (Chem) (Hons) is an independent
mineral processing consultant and previously having held the
position of Head of Metallurgy & Projects at the Lisheen mine,
and having worked on various base metal deposits throughout
Ireland, has sufficient experience relevant to the activity which
he is undertaking to qualify as a Competent Person in accordance
with the guidance note for Mining, Oil & Gas Companies issued
by the London Stock Exchange in respect of AIM Companies, which
outlines standards of disclosure for mineral projects. Mr O Carroll
consents to the inclusion in this announcement of the matters based
on his information in the form and context in which it appears.
*ENDS*
For further information visit www.errisresources.com or
contact:
Anton du Plessis /Aiden
Lavelle Erris Resources plc +353 (0) 94 902 8481
Allenby Capital (Nominated
David Hart/Liz Kirchner Adviser) +44 (0) 20 3328 5656
------------------------------- ---------------------
Shard Capital (Joint
Erik Woolgar Broker) +44 (0) 20 7186 9952
------------------------------- ---------------------
Turner Pope Investments
Andy Thacker (TPI) Ltd (Joint Broker) +44 (0) 20 3621 4120
------------------------------- ---------------------
Isabel de Salis/Gaby St Brides Partners (Financial
Jenner PR) +44 (0) 20 7236 1177
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Notes
Erris Resources plc (EPIC: ERIS.L) is an AIM quoted, European
focused, discovery driven exploration company. Supported by
Canadian mining majors, Osisko Gold Royalties, which has a 18.9%
interest in the Company, and Centerra Gold KB Inc, a wholly owned
subsidiary of TSX listed Centerra Gold Inc., the Company has an
established portfolio of zinc and base metals assets in Ireland and
gold projects in Sweden, which it is looking to further build on.
Led by a highly qualified team with extensive corporate and sector
experience, Erris Resources' strategy is to create shareholder
value through commercial discovery of base or precious metal assets
in proven mineral districts and in favourable European
jurisdictions.
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END
UPDJTMBTMBTBTPL
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