Colibri Option Partner Announces High Recovery of Gold and Silver at Pilar Project
Colibri Option Partner Announces High
Recovery of Gold and Silver at Pilar Project
Dieppe, New Brunswick--(Newsfile Corp. - April 11, 2023) - Colibri Resource Corporation (TSXV: CBI)
("Colibri" or the "Company") is pleased to report that its option partner Tocvan Ventures (CSE: TOC)
has announced high-percentage recoverable gold and silver at its bulk sample testing at the Pilar Gold
and Silver Project at the Pilar Project in Sonra, Mexico.
Tocvan is in year 4 of a 5-year agreement to earn an initial 51% of Colibri's Pilar Gold & Silver Project.
For full details of Colibri's agreement with Tocvan please see the Company's news release dated
September 24th, 2019
.
Tocvan News Release:
(April 11
th
, 2023):
Brodie Sutherland, P.Geo of Tocvan reports:
Tocvan Diagnostic Leach Study Reports High Percentage of Recoverable Gold and Silver
Highlights
Diagnostic Leach Study Reports High-Percentage of Recoverable Gold and Silver (Au: 95
to 99%; Ag: 73 to 97%)
Head Screen Assays Report High-Grade Gold and Silver (2.7 to 24.9 g/t Au and 8.8 to 74.2
g/t Ag)
Gravity Concentrate Assays for Gold and Silver range from 35.6 to 290.3 g/t Au and 53 to
1,152 g/t Ag
Majority of Gold and Silver can be Recovered with Gravity Concentration and Agitated
Cyanide Leach
Drill core sample indicates same recovery potential at depth (150m down hole) as at
surface.
Calgary, Alberta
-
April 11, 2023 -
Tocvan Ventures Corp. (CSE: TOC) (OTCQB: TCVNF) (FSE: TV3)
(the "
Company
"), is pleased to provide the results of a Precious Metal Diagnostic Leach Study from its
Pilar Gold-Silver Project in Sonora, Mexico. Five composite samples were collected for the study; three
Main Zone surface channel composites (samples 494741, 494743 and 494745); one 4-T surface
channel composite (sample 494747); and one drill core coarse reject composite (sample 494749) from
drill hole JES-22-62 at 150-meter downhole depth, 125-meters from surface (
108.6m of 0.8 g/t Au,
including 9.5m of 7.6 g/t Au
). Table 1 summarizes the findings of the report and highlights the total
recoverable amount of gold and silver possible by gravity concentration followed by agitated cyanide
leach of the gravity tails. Precious metal characterization for each sample is summarized in Table 2,
highlighted by a large percentage of free gold and silver with the remaining portion predominantly
"exposed but attached", indicating a large percentage of the gold and silver can be recovered. The study
was completed by independent and ISO certified, metallurgical lab LTM, a full report of the study is
available on the Company's website.
"These results far surpass our expectations and provide us with new insight on the optimization of gold
and silver recovery at Pilar"
stated Brodie Sutherland, CEO.
"To have such a large percentage of the
gold and silver free and accessible for multiple recovery methods allows us to evaluate the most
efficient ways to develop the project. This is a huge checkmark for the project and an excellent
indicator to the industry that Pilar can be developed. We look forward to further evaluating the bulk
sample data in the coming months."
Sample ID
Location
Head Screen Assay
Gravity Concentrate Assay
Total Recoverable by Gravity and
Agitated Cyanide Leach
Au (g/t)
Ag (g/t)
Au (g/t)
Ag (g/t)
Au (%)
Ag (%)
494741
Main Zone
(Surface)
6.2
23
76.2
237
95
78
494743
Main Zone
(Surface)
8.2
68
117.0
1152
98
97
494745
Main Zone
(Surface)
2.7
9
35.6
82
97
90
494747
4-T (Surface)
20.4
74
290.3
568
98
85
494749
Main Zone (Drill
Core)
24.9
9
231.1
53
99
73
Table 1
. Summary of Results from the Precious Metals Diagnostic Leach Study completed by LTM.
Table 2
. Precious Metal Characterization Summary.
To view an enhanced version of this graphic, please visit:
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Photo 1.
Leach Pad Liner set into place prior to stacking of material.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4269/161983_502cdec944e26847_002full.jpg
About the Bulk Sample
Over 1,400 tonnes of oxide-gold material have been extracted from select areas exposed at surface
across the project area, focusing on the Main Zone and 4-T Trends where preliminary column leach
studies have returned promising head-grade and recovery results. Bulk Sample material will be
prepared for processing by heap-leach method at a private mining operation less than 25 kilometers to
the west of Pilar. Information from the sample will aim to provide a more detailed account of expected
head-grade and recovery percentage of gold along with providing key information to optimize future
production facilities. The information provided from the sample will be used for planning in coordination
for permitting of full-scale mine and process facilities on-site at Pilar.
Brodie A. Sutherland, P.Geo., CEO for Tocvan Ventures Corp. and a qualified person ("QP") as defined
by Canadian National Instrument 43-101, has reviewed and approved the technical information
contained in this release.
ABOUT COLIBRI RESOURCE CORPORATION:
Colibri is a Canadian-based mineral exploration company listed on the TSX-V (CBI) and is focused on
acquiring and exploring prospective gold & silver properties in Mexico. The Company holds six highly
prospective precious metal projects of which five have planned exploration programs for calendar 2023.
For more information about all Company projects please visit:
www.colibriresource.com
.
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.
Notice Regarding Forward-Looking Statements:
This news release contains "forward-looking statements". Statements in this press release which are not
purely historical are forward-looking statements and include any statements regarding beliefs, plans,
expectations or intentions regarding the future. Actual results could differ from those projected in any
forward-looking statements due to numerous factors. These forward-looking statements are made as of
the date of this news release, and the Company assumes no obligation to update the forward-looking
statements, or to update the reasons why actual results could differ from those projected in the forward-
looking statements. Although the Company believes that the plans, expectations and intentions
contained in this press release are reasonable, there can be no assurance that they will prove to be
accurate.
For information contact: Ronald J. Goguen, President, Chairperson and Director, Tel: (506) 383-4274,
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