AVINO ADDS SIGNIFICANT MINERAL RESOURCES TO TOTAL 368 MILLION SILVER EQUIVALENT OUNCES ACROSS ALL PROPERTIES
Avino Silver & Gold Mines has released an updated mineral resource estimate (MRE) showcasing substantial increases across several deposits. Highlights include:
- Measured and Indicated Resources: 161 million silver equivalent ounces, a 38% increase.
- Inferred Resources: 70 million silver equivalent ounces, a significant 90% rise.
- Oxide Tailings: 5.7 million tonnes in resources, up 407%, with 17.4 million silver equivalent ounces, a 287% increase.
The update reflects continued exploration success and positions Avino for long-term growth, with an ambitious 2023 exploration program planned.
- Total measured and indicated mineral resources increased to 161 million silver equivalent ounces, a 38% rise.
- Inferred resources reached 70 million silver equivalent ounces, marking a 90% increase.
- The Oxide Tailings deposit saw a significant 407% increase in measured and indicated mineral resources.
- None.
- 161 million measured and indicated silver equivalent ounces, an increase of
38% , made up of: - 70 million silver ounces, an increase of
35% - 136.7 thousand copper tonnes, an increase of
18% - 596 thousand gold ounces, an increase of
23% , contained in: - 34.7 million measured and indicated metric tonnes, increase of
28% overall, also - 70 million inferred silver equivalent ounces, an increase of
90%
- 5.7 million tonnes of measured and indicated mineral resources, an increase of
407% - 17.4 million measured and indicated silver equivalent ounces, an increase of
287%
Avino Mine Property - Mineral Resource Estimate Effective Date - | |||||||||||
Measured & Indicated Mineral Resources | Average Grade | Metal Contents | |||||||||
Resource Category | Deposit | Cut off (AgEq g/t) | Metric Tonnes (000s) | AgEq (g/t) | Ag (g/t) | Au (g/t) | Cu (%) | AgEq (M oz) | Ag (M oz) | Au (k oz) | Cu (M lb) |
Measured | Avino - ET | 60 | 3,883 | 171 | 69 | 0.53 | 0.57 | 21.39 | 8.58 | 67.00 | 48.91 |
Measured | San Gonzalo | 130 | 331 | 332 | 244 | 1.17 | 0.00 | 3.53 | 2.59 | 12.42 | 0.00 |
Measured | Oxide Tailings | 50 | 3,809 | 102 | 63 | 0.48 | 0.12 | 12.50 | 7.72 | 59.00 | 10.00 |
Total Measured | All Deposits | 8,023 | 145 | 73 | 0.54 | 0.33 | 37.42 | 18.89 | 138.42 | 58.91 | |
Indicated | Avino - ET | 60 | 23,916 | 146 | 58 | 0.53 | 0.44 | 112.41 | 44.59 | 409.00 | 234.08 |
Indicated | San Gonzalo | 130 | 302 | 293 | 230 | 0.84 | 0.00 | 2.85 | 2.23 | 8.14 | 0.00 |
Indicated | Guadalupe | 100 | 401 | 169 | 70 | 0.79 | 0.37 | 2.17 | 0.90 | 10.24 | 3.27 |
Indicated | La Potosina | 100 | 142 | 220 | 186 | 0.41 | 0.04 | 1.00 | 0.85 | 1.85 | 0.13 |
Indicated | Oxide Tailings | 50 | 1,877 | 81 | 41 | 0.49 | 0.12 | 4.91 | 2.49 | 30.00 | 5.00 |
Total Indicated | All Deposits | 26,638 | 144 | 60 | 0.54 | 0.41 | 123.34 | 51.06 | 459.23 | 242.48 | |
Total Measured & Indicated | All Deposits | 34,662 | 144 | 63 | 0.54 | 0.39 | 160.76 | 69.96 | 596.65 | 301.40 |
Inferred Mineral Resources | Average Grade | Metal Contents | ||||||||||||
Resource Category | Deposit | Cut off (AgEq g/t) | Metric Tonnes (000s) | AgEq (g/t) | Ag (g/t) | Au (g/t) | Cu (%) | AgEq (M oz) | Ag (M oz) | Au (k oz) | Cu (M lb) | |||
Inferred | Avino - ET | 60 | 17,591 | 106 | 37 | 0.34 | 0.40 | 59.76 | 20.72 | 191.00 | 154.18 | |||
Inferred | San Gonzalo | 130 | 246 | 297 | 271 | 0.35 | 0.00 | 2.35 | 2.14 | 2.74 | 0.00 | |||
Inferred | Guadalupe | 100 | 354 | 159 | 82 | 0.62 | 0.30 | 1.81 | 0.93 | 7.00 | 2.30 | |||
Inferred | La Potosina | 100 | 844 | 176 | 149 | 0.29 | 0.05 | 4.79 | 4.05 | 7.90 | 1.01 | |||
Inferred | Oxide Tailings | 50 | 278 | 101 | 65 | 0.44 | 0.11 | 0.90 | 0.58 | 4.00 | 1.00 | |||
Total Inferred | All Deposits | 19,313 | 112 | 46 | 0.34 | 0.37 | 69.61 | 28.42 | 212.64 | 158.49 | ||||
- Figures may not add to totals shown due to rounding. All ounces are troy ounces.
- Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.
- The Mineral Resource estimate is classified in accordance with the
Canadian Institute of Mining , Metallurgy and Petroleum's (CIM) Definition Standards for Mineral Resources and Mineral Reserves incorporated by reference into National Instrument 43-101 (NI 43-101) Standards of Disclosure for Mineral Projects. - Based on recent mining costs Mineral Resources are reported at AgEq cut-off grades of 60 g/t, 130 g/t, and 50 g/t for ET, San Gonzalo, and Oxide Tailings, respectively. The cut-off grades for Guadalupe and La Potosina are 100 g/t.
- AgEQ or silver equivalent ounces are notional, based on the combined value of metals expressed as silver ounces.
- The silver equivalent was back-calculated using the following formulas:
- ET, Guadalupe, La Potosina: AgEq (g/t) = Ag (g/t) + (71.43 x Au (g/t) + (113.04 x Cu (%))
- San Gonzalo: AgEq (g/t) = Ag (g/t) + (75.39 x Au (g/t))
- Oxide Tailings: AgEq (g/t) = Ag (g/t) + (81.53 x Au (g/t))
- Cut-off grades were calculated using the following consensus metal price assumptions: gold price of
US /oz, silver price of$1,800 US /oz, and copper price of$21.00 US /lb.$3.50 - Metal recovery is based on operational results and column testing.
Avino President and CEO,
The total measured and indicated mineral resource tonnage in all deposits totals 34.6 million metric tonnes containing
160.8 million ounces of silver equivalent, comprised of 69.96 million ounces of silver, 596,650 ounces of gold, and 301.4 million pounds of copper.
The total inferred mineral resource tonnage in all deposits totals 19.3 million metric tonnes, consisting of 69.61 million ounces of silver equivalent comprised of 28.42 million ounces of silver, 212,640 ounces of gold, and 158.49 million pounds of copper.
The ET deposit has been sampled in underground development below elevations of 360 metres to 470 metres below surface, and it has been discovered to be consistently mineralized between the hanging wall and footwall veins over a thickness of up to 45 metres. This broad zone has been proven by underground development and channel sampling down to an elevation of 1,849 metres above sea level and remains open below. The Mineral Resource at the ET deposit has been updated based on 3D models of underground development and stoping excavations less all production since the last resource update.
Our strategy of phased exploration drilling to deeper levels, followed by ramping and development continues to be cost effective and mitigates risk as the ET deposit is developed to deeper levels. Remarkably, the ET deposit continues to reveal mineralized extensions nearly five hundred years since the beginning of mining.
The Oxide Tailings resource has been updated with the additional 127 drill holes drilled in 2022 which has added significant confidence in the block model and significantly increased mineral resources in all categories. Sonic drilling proved to be a very efficient tactic in confirming the tailings deposit. The Oxide Tailings deposit provides significant potential for future production, with detailed metallurgical test work already completed and an upcoming prefeasibility study to be started within 2023.
These vein deposits are being included in the resource statement for the first time. The Guadalupe deposit is less than one kilometer from the Avino processing plant.
The definitive estimation methods used were substantially the same for all three deposits (Ordinary Kriging), providing a consistent baseline for strategic planning.
Mineral resources were estimated by ordinary kriging, optimized using kriging neighbourhood analysis and verified by means of nearest neighbour and inverse distance methods, swathplot comparisons of estimates and visual inspections. Block models were created for the San Gonzalo, and Avino Vein Systems ET, Guadalupe, La Potosina and the Oxide Tailings deposit, and estimates were made using industry standard techniques.
Fundamental changes since the previous mineral resource estimates in 2020 are (1) depletion due to mining (over 550 thousand tonnes milled), (2) new sampling and drilling information and (3) changes to the interpretation of the brecias and vein models at ET.
More sampling information does not always lead to direct increases in resource tonnages and contained metal. In some cases, the new information provides improved understanding (developed by variogram modelling and kriging neighborhood analysis) that may demote some portions of mineral resource from high confidence measured and indicated categories, to a lower confidence inferred category.
For the San Gonzalo and Avino Vein Systems, estimated blocks with average distances more than 80 metres from samples have been classified as inferred resources. For the San Gonzalo Deposit, estimated blocks with average distances more than 30 metres from samples have been classified as inferred resources.
For the Oxide Tailings, estimated blocks more than 60 metres from samples are not included in the indicated category resources.
For La Potosina and Guadalupe, estimated blocks more than 30 metres from samples are not included in the indicated category resources.
The mineral resources estimate is being included in an updated technical report prepared by Tetra Tech Inc. under National Instrument 43-101 ("NI-43-101"), which will be available on SEDAR (www.sedar.com) under the Company's profile and filed on Form 6-K with the
Measured & Indicated Mineral Resources | Average Grade | Metal Contents | |||||||||
Resource Category | Deposit | Cut off (AgEq g/t) | Metric Tonnes (000s) | AgEq (g/t) | Ag (g/t) | Au (g/t) | Cu (%) | AgEq (M oz) | Ag (M oz) | Au (k oz) | Cu (M lb) |
Measured | Avino – All Deposits | See Above | 8,023 | 145 | 73 | 0.54 | 0.33 | 37.42 | 18.89 | 138.42 | 58.91 |
Total Measured | All Deposits | 8,023 | 145 | 37.42 | 18.89 | 138.42 | 58.91 | ||||
Indicated | Avino – All Deposits | See Above | 26,638 | 144 | 60 | 0.54 | 0.41 | 123.34 | 51.06 | 459.23 | 242.48 |
Indicated | La Preciosa – All Deposits | 120 | 17,441 | 202 | 176 | 0.34 | - | 113.14 | 98.59 | 189.19 | - |
Total Indicated | All Deposits | 44,079 | 167 | 236.48 | 149.65 | 648.42 | 242.48 | ||||
Total Measured & Indicated | All Deposits | 52,103 | 164 | 273.90 | 168.55 | 785.84 | 301.40 | ||||
Inferred Mineral Resources | Average Grade | Metal Contents | |||||||||
Inferred | Avino – All Deposits | See Above | 19,313 | 112 | 46 | 0.34 | 0.37 | 69.61 | 28.42 | 212.64 | 158.49 |
Inferred | La Preciosa – All Deposits | 120 | 4,397 | 170 | 151 | 0.25 | - | 24.10 | 21.33 | 35.48 | - |
Total Inferred | All Deposits | 23,710 | 123 | 93.71 | 49.75 | 248.12 | 158.49 |
- See Table 1 for Avino Mine Property details and footnotes, including individual deposit cutoff grades.
- La Preciosa Mineral Resource Estimate is effective dated
October 27, 2021 – see Avino news release datedDecember 21, 2021 , for assumptions and full details on AgEq calculations.
The Qualified Persons as defined by NI 43-101, who are responsible for the technical content of this news release are Michael
Avino is a silver producer from its wholly owned
On Behalf of the Board
"
________________________________
President & CEO
This news release contains "forward-looking information" and "forward-looking statements" (together, the "forward looking statements") within the meaning of applicable securities laws and the United States Private Securities Litigation Reform Act of 1995, including the amended mineral resource estimate for the Company's Avino Property located near Durango in west-central
References to Measured & Indicated Mineral Resources and Inferred Mineral Resources in this press release are terms that are defined under Canadian rules by National Instrument 43-101 ("NI 43-101"). On
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