VANCOUVER, BC, Aug. 4, 2021 /CNW/ - Orex Minerals
Inc. – (TSXV: REX) (OTCQB: ORMNF) ("Orex") is
pleased to announce that Exploraciones y Desarrollos Mineros
Coneto, SAPI de CV, a joint venture 55% Fresnillo plc (LON:FRES) – 45% Orex, has
received positive metallurgical testing results for the Coneto
Gold-Silver Project in Durango,
Mexico. Seven separate zones on the property were sampled
and sent to the certified laboratories of SGS de Mexico S.A. de
C.V.
Gold average recovery is higher than 93% for the zones "Santo
Niño", "Loma Verde Norte", "Impulsora", "La Bufa" and "Loma Verde
Sur", whereas "Descubridora" and "Promontorio" returned 86.2% and
66.1% respectively. The highest gold recovery was 98.5%. The bulk
of the gold was recovered within the first 48 hours.
Silver recoveries varied from 69.0% to 92.3%, with an average
silver recovery of 79.6%. Silver recovery percentage was still
increasing at the 96 hour mark of the leach tests.
Orex's President & CEO, Ben
Whiting, said; "These excellent results from our
preliminary metallurgical testing are a very positive step toward
the advancement of the Coneto Project. They show that precious
metals can be successfully recovered using conventional
methods."
Gold and Silver Head Grades, Recoveries and Reagent
Consumption
Zone
|
Head Grade
Au (g/t)
|
Head Grade
Ag (g/t)
|
Recovery
Au
(%)
|
Recovery
Ag
(%)
|
Consumption
NaCN (kg/t)
|
Consumption
CaO
|
Santo Niño
|
2.21
|
229.0
|
95.0
|
83.9
|
1.02
|
0.27
|
L Verde
Norte
|
0.97
|
154.0
|
93.6
|
92.3
|
0.66
|
0.40
|
Impulsora
|
3.01
|
9.0
|
95.8
|
69.0
|
0.51
|
0.22
|
La Bufa
|
3.08
|
117.0
|
98.5
|
72.9
|
0.56
|
0.22
|
Promontorio
|
2.06
|
45.0
|
66.1
|
75.9
|
0.61
|
1.69
|
Descubridora
|
0.80
|
95.0
|
86.2
|
75.9
|
0.71
|
0.17
|
L Verde
Sur
|
1.63
|
113.0
|
95.0
|
87.6
|
0.76
|
0.30
|
The research was conducted in the Durango City laboratories of
SGS. Ball mill grinding kinetics were carried out to obtain the
appropriate times to reach the particle size of 80% passing through
200 mesh (75 microns). Bottle roll testing was carried out for each
sample to evaluate recovery of gold and silver. The tests were
developed in 5 litre bottles, using ~ 1000 grams of sample, for a
retention time of 96 hours. During this period, monitoring was
carried out at intervals of 2, 6, 12, 24, 48, 72 and 96 hours to
obtain solution samples to assess the kinetics of gold and silver
dissolution. Consumption of the reagents sodium cyanide and calcium
oxide were also determined. Multi-sample assay testing was
performed to determine the head grades and tailing grades for each
zone.
Coneto Silver-Gold Project, Durango, Mexico
Coneto is situated around the town of Coneto de Comonfort, Durango, in the heart of
the "Mexican Silver Trend". It is approximately 100 km north of the
City of Durango and 25 km west of Argonaut's El Castillo Gold Mine.
This prolific trend hosts some of the world's largest silver camps
and deposits, including Fresnillo,
Guanajuato, La Pitarrilla, La
Preciosa, Real de Angeles and Zacatecas. (Note: Mineralization hosted on
adjacent and/or nearby properties may not necessarily be indicative
of mineralization hosted on the JV's property.)
The Project consists of approximately 4,997 hectares (11,860
acres) of contiguous mineral concessions and covers multiple
mineralized low to intermediate-sulphidation epithermal quartz
veins. Excellent infrastructure exists in the Coneto area,
including paved road access, electrical power, water and manpower
from nearby communities.
Ben Whiting, P.Geo., and Dale
Brittliffe, P.Geo., are Qualified Persons as defined in NI 43-101
and take responsibility for the technical disclosure contained in
news release.
ABOUT OREX MINERALS INC.
Orex Minerals Inc. is a mineral exploration company focused on
precious and base metals exploration in Mexico and Canada. Orex has several current projects: Two
projects are located in Durango State, Mexico, the Sandra Silver-Gold Project with
Pan American Silver Corp. and the Coneto Gold-Silver Project with
Fresnillo PLC. The third project is the Jumping Josephine Gold
Project in British Columbia,
Canada. Orex is managed by the experienced Belcarra Group
Management Ltd. (the "Belcarra Group"), comprised of highly
qualified mining professionals.
ON BEHALF OF THE BOARD OF DIRECTORS
Ben Whiting. P.Geo.
President and CEO
FORWARD LOOKING STATEMENTS
This News Release may contain forward-looking statements
including, but not limited to, statements with respect to the
planned program and budget for the Project. Forward-looking
statements address future events and conditions and therefore
involve inherent risks and uncertainties. Actual results may differ
materially from those currently anticipated in such statements and
Orex undertakes no obligation to update such statements, except as
required by law.
For additional information on risks and uncertainties, see
the Company's most recently filed annual management discussion and
analysis ("MD&A"), which is available on SEDAR at www.sedar.com
and on the Company's website at www.orexminerals.com. The risk
factors identified in the MD&A are not intended to represent a
complete list of factors that could affect the Company.
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.
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SOURCE Orex Minerals Inc.