Emerita Resources Corp. (TSX – V: EMO; OTCQB: EMOTF; FSE: LLJA)
(the “Company” or “Emerita”) is pleased to provide an update on the
metallurgical testing program (the “Program” or “Phase 1”) on its
wholly-owned Iberian Belt West Project (“IBW” or the “Project”).
Emerita Resources has conducted Metallurgical testing Phase I, in
collaboration with Wardell Armstrong International and SRK
Consulting (Please see the news release April 22, 2024 for further
details regarding the Program).
The goal of the Phase I Program was to
demonstrate that commercial grade concentrates can be produced from
the Project’s La Romanera and La Infanta deposits which comprise
the NI 43-101 mineral resource estimate to date, and at recoveries
which are potentially economic and provide required data for
planned mill plant design.
IBW hosts three massive sulphide deposits: La
Infanta, La Romanera and El Cura. Phase I metallurgical Testing was
carried out on La Romanera and La Infanta deposits. El Cura deposit
is presently being drilled and will be subject to test work once
the mineral resource estimate there is established.
Phase I focused on the production of separate
copper, lead and zinc concentrates through a sequential test
methodology. As part of Phase I, the distribution of gold and
silver within the various test products have been tracked however,
specific gold and silver recovery testing was not the focus in this
phase, still data from Phase I provides important insights with
respect to optimizing the precious metals. In Phase I the precious
metal recoveries were up to 48.6 % silver and 17.2 % gold in
different products.
Phase II, which has now been initiated, will
investigate optimizing gold and silver recoveries as gravitational
and/or concentrate products to bring that up to a target of 60%
recovery or more.
Phase I demonstrates that the IBW Project shows
excellent averages, 85.6% Zinc recovery,
62% Copper recovery and 59% Lead
recovery, obtaining commercial grade concentrates from both
deposits. These results, which have been normalised based upon
resource head grades, are in line with, and in fact, exceed the
metallurgical performance of polymetallic ores presently in
production in the Iberian Belt. Copper recoveries improve in areas
of the deposit with higher copper grades.
I. |
Concentrates |
|
|
|
|
La Infanta Deposit: |
|
Zinc concentrate: 52.7% Zn; 0.4 g/t Au; 113g/tn Ag and 8.5% mass
pull. |
|
|
Recoveries of 81.5% Zn, 9.6% Au, 12% Ag. |
|
Copper concentrate: 23.9% Cu, 7.4g/t Au and 1780 g/t Ag and 1.8%
mass pull. |
|
|
Recoveries of 47.5% Cu, 35.4% Au, 37.7% Ag. |
|
Lead concentrate: 41.6% Pb, 4.42%Cu 0.6g/Au and 510g/t silver and
6.5% mass pull. |
|
|
Recoveries of 84.5% Pb; 33.5% Cu; 11% Au; 41.3% Ag. |
|
Highlight the recovery of 56% of gold and 91% of silver in
La Infanta deposit. Gold mainly associated with copper concentrate
and silver associated with copper and lead
concentrates. |
|
|
|
|
La Romanera Deposit: |
|
Zinc concentrate: 52.6% Zn; 2.4 g/t Au; 182g/t Ag and 5.5% mass
pull. |
|
|
Recoveries 86.5% Zn; 9.3% Au; 13.6% Ag. |
|
Lead concentrate: 43.5% Pb; 13.8% Cu, 5.2 g/t Au; 1165 g/t Ag and
1.8% mass pull. |
|
|
Recoveries 50.5% Pb; 57% Cu; 6.6% Au; 28.5% Ag. |
|
|
|
II. |
Obtaining Design Parameters |
|
In addition to the conditioning and flotation times, the parameters
for the basic engineering and request for tenders for the ore
processing plant have been determined. |
|
La Infanta |
La Romanera |
DWi (Kwh/m3) |
4.4 |
7.5 - 8.6 |
SCSE (Kwh/Tn) |
8.21 |
8.38 - 8.88 |
Bond Abrasion Index |
0.2908 |
0.4189 - 0.6747 |
Bond Index (Kwh/t) |
13.12 |
14.37 - 14.79 |
|
|
III. |
Gold Recovery at La Romanera |
|
Using the ‘Diagnostic Leaching of Gold Ores’ procedure on flotation
tailings, it has been determined that 8.9% of the gold is
accessible for hydrometallurgical treatment and that 34.27% is
associated with sulphides and 27.9% associated with arsenopyrite.
According to Jorge Blanco, Director of Metallurgy for Emerita,
“The results of these tests show a potential to increase
gold recovery by up to an additional 43.25%. With what we have
learned from the Phase I testing and the mineralogical work now
being completed in support of Phase II we see potential to achieve
60% recoveries of the gold in Romanera. Given the gold enrichment
that occurs in portions of that deposit this represents an
important opportunity for the Project.” |
Emerita Resources has initiated a Phase II of
the Program in collaboration with Wardell Armstrong International
with two main objectives:
A. To ratify the experimental data
obtained in Phase I, by means of closed-circuit flotation tests
following the scheme obtained in Phase I, using new average samples
from each of the deposits and their possible mixtures during the
LOM.
B. Increase gold recoveries at La Romanera
deposit by focusing on 2 basic strategies.
- Determine the geochemical
conditions that allow the existence of free gold forming Electrum,
as observed in several petrographic analysis samples.
- Concentrate gold by differential
Pyrite/Arsenopyrite flotation on the Romanera flotation
tailings.
About the Metallurgical Test Program
Phase IThe metallurgical test work in Phase I was carried
out by Wardell Armstrong International Laboratories in the U.K.
Additionally, the Company commissioned SRK Consulting to provide
metallurgical oversight for the Company to ensure the test program
was completed to the highest standard.
The primary objective of this programme of
metallurgical testing was to provide sufficient data pertaining to
the processing characteristics of material from La Romanera and La
Infanta deposits, to support the delivery of a Scoping Study and
future economic evaluation of IBW.
Testing was undertaken on four composites of
approximately 100kg each, three from La Romanera and one from La
Infanta deposit. Samples submitted for testing were;
- La Romanera MET 1: High Gold –
Lower Lens;
- La Romanera MET 2: High Copper/Low
Zinc – Upper + Lower Lens; and
- La Romanera MET 3: Average
Copper/Zinc – Upper + Lower Lens.
- La Infanta MET 4: Semi-Massive
Sulphide
Each of the four samples were subjected to a
preliminary characterization study involving chemical analysis and
mineralogical investigation on four sized fractions. The samples
have been subjected to a programme of rougher, cleaner, and locked
cycle flotation testing to assess the effect of variations in feed
grade and ore type on the production of copper, copper/lead, lead,
and zinc concentrates.
Qualified Person
Scientific and technical information in this
news release has been reviewed and approved by each of Joaquin
Merino, P.Geo, President of the Company and Mr. Jorge A. Blanco,
MChem., Director of Metallurgy of the Company and each a Qualified
Person as defined by NI 43-101.
About Emerita Resources
Corp.
Emerita is a natural resource company engaged in
the acquisition, exploration, and development of mineral properties
in Europe, with a primary focus on exploring in Spain. The
Company’s corporate office and technical team are based in Sevilla,
Spain with an administrative office in Toronto, Canada.
For further information, contact:
Ian Parkinson+1 647 910-2500
(Toronto)info@emeritaresources.comwww.emeritaresources.com
Cautionary Note Regarding Forward-looking
Information
This press release contains “forward-looking
information” within the meaning of applicable Canadian securities
legislation. Forward-looking information includes, without
limitation, statements regarding Phase I and the results and
interpretations thereof, the prospectivity of the IBW project, the
mineralization of the IBW project, the timing of Phase II of the
Program, the economic viability of the IBW project, the timing of
technical and economical studies and the Company’s future
exploration plans and the Company’s future plans. Generally,
forward-looking information can be identified by the use of
forward-looking terminology such as “plans”, “expects” or “does not
expect”, “is expected”, “budget”, “scheduled”, “estimates”,
“forecasts”, “intends”, “anticipates” or “does not anticipate”, or
“believes”, or variations of such words and phrases or state that
certain actions, events or results “may”, “could”, “would”, “might”
or “will be taken”, “occur” or “be achieved”. Forward- looking
information is subject to known and unknown risks, uncertainties
and other factors that may cause the actual results, level of
activity, performance or achievements of Emerita, as the case may
be, to be materially different from those expressed or implied by
such forward-looking information, including but not limited to:
general business, economic, competitive, geopolitical and social
uncertainties; the actual results of current exploration
activities; risks associated with operation in foreign
jurisdictions; ability to successfully integrate the purchased
properties; foreign operations risks; and other risks inherent in
the mining industry. Although Emerita has attempted to identify
important factors that could cause actual results to differ
materially from those contained in forward-looking information,
there may be other factors that cause results not to be as
anticipated, estimated or intended. There can be no assurance that
such information will prove to be accurate, as actual results and
future events could differ materially from those anticipated in
such statements. Accordingly, readers should not place undue
reliance on forward-looking information. Emerita does not undertake
to update any forward-looking information, except in accordance
with applicable securities laws.
NEITHER 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.
Emerita Resources (TSXV:EMO)
Historical Stock Chart
From Nov 2024 to Dec 2024
Emerita Resources (TSXV:EMO)
Historical Stock Chart
From Dec 2023 to Dec 2024