This technical report presents an amended mineral resource estimate update for the Avino Property in Durango, Mexico, effective February 21, 2018 and amended December 19, 2018.
Report context
This technical report was prepared for Avino Gold & Silver Mines Ltd. and documents an amended mineral resource estimate update for the Avino Property located in Durango, Mexico. The report effective date is February 21, 2018, with an amended date of December 19, 2018. The report covers four mineralized sources at the property: the Avino Vein, the San Gonzalo Vein, the Oxide Tailings, and the Sulphide Tailings.
Processing route
Avino Vein
Section 17.1 of the report describes the recovery methods for the Avino Vein. The processing information presented in Section 13.0 indicates that mineral processing and metallurgical testing were conducted for this vein system.
San Gonzalo Vein
Section 17.2 describes the recovery methods for the San Gonzalo Vein. The San Gonzalo Vein has been subject to a bulk sample program and production as described in Section 16.3. Mining methods for the San Gonzalo Vein are detailed in Section 16.3, including the bulk sample program (Section 16.3.1), production (Section 16.3.2), and mine design (Section 16.3.3).
Oxide Tailings
Section 17.3.1 describes the recovery methods for the Oxide Tailings resource. The Oxide Tailings are described in Section 1.3.3 as a distinct mineralized source. Section 16.4 describes mining considerations for the Oxide Tailings, including schedule (Section 16.4.1), equipment (Section 16.4.2), and modifying site considerations (Section 16.4.3).
Sulphide Tailings
Section 17.3.2 describes the recovery methods for the Sulphide Tailings resource. Section 13.4 provides additional information on mineral processing and metallurgical testing for the Sulphide Tailings. Section 16.5 describes mining considerations for the Sulphide Tailings.
Key reported parameters
| Parameter | Value | Basis |
|---|---|---|
| Report effective date | February 21, 2018 | Design |
| Report amended date | December 19, 2018 | Design |
| Property location | Durango, Mexico | Factual |
| Mineralized sources | Avino Vein, San Gonzalo Vein, Oxide Tailings, Sulphide Tailings | Factual |
| Cut-off and silver equivalent calculations | Presented in Section 14.14.1 | Design |
| Grade-tonnage tables | Presented in Section 14.14.1 | Design |
| Grade-tonnage graphs | Presented in Section 14.14.2 | Design |
Project website: https://www.avino.com/
Technical qualifications
This report was prepared as a mineral resource estimate update for the Avino Property. The mineral resource estimates and classifications are presented in Section 14.0 of the report. The report notes that modifying site considerations for the Oxide Tailings are addressed in Section 16.4.3. The report does not include mineral reserve estimates as Section 15.0 is titled "Mineral Reserve Estimates" but contains no substantive content in the provided source material.
Source: Avino Gold & Silver Mines Ltd. Amended Mineral Resource Estimate Update for the Avino Property, Durango, Mexico, 704-EG-VMIN03003-02, effective February 21, 2018, amended December 19, 2018.
