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Mexico

San Gonzalo Mine

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Summary

Mine TypeUnderground
StatusCare and Maintenance
Commodities
  • Silver
  • Gold
Mining Method
  • Cut & Fill
  • Shrinkage stoping
Backfill type ... Lock
Production Start... Lock
SnapshotThe Avino Property hosts the San Gonzalo Mine, which is currently on care and maintenance.

The Company previously produced a silver-gold concentrate from the San Gonzalo Mine, located on the same property. However, in 2019, the Company ceased production at San Gonzalo to focus on operations at the Avino Mine.

Materials from the San Gonzalo Mine were processed between October 2012 and the fourth quarter of 2019, targeting gold, silver, lead, and zinc.

There is potential for a tailings resource from previous operations; however, there is currently no active operation processing tailings material.

Reclamation activities at the San Gonzalo Mine are estimated to commence in 2028.

Owners

SourceSource
CompanyInterestOwnership
Avino Silver & Gold Mines Ltd. 99.67 % Indirect
Avino Silver & Gold Mines Ltd. holds a 99.67% interest in the Avino Property through its subsidiary companies called Compañía Minera Mexicana de Avino, S.A. de C.V. (CMMA) and Promotora Avino, S.A. de C.V. (Promotora). The Avino Property also hosts the San Gonzalo Mine.

The property ownership is distributed as follows: CMMA (subsidiary) holds 98.45%, Promotora Avino, S.A. de C.V. (subsidiary) owns 1.22%, and the Estate of Ysita holds a non-controlling interest of 0.33%.

Deposit type

  • Vein / narrow vein

Summary:

The San Gonzalo Vein system, including the crosscutting Angelica Vein, is located 2 km northeast of the Avino Vein. It constitutes a strongly developed vein system over 25 m across, trending 300° to 325°/80° northeast to 77° south. Banded textures and open-space filling are common, and individual veins have an average width of less than 2 m. The vein was mined historically, and underground workings extend approximately 1.1 km along the strike to the 1,970 masl (300 m below the surface).

The San Gonzalo is a typical narrow vein, precious metal deposit with some erratic values and extends approximately 2 km to the northwest to the Santa Ana-Malinche area (Gunning 2009).

The Cerro San Jose-La Estella-San Gonzalo Cerro San Jose represents a distinct hydrothermal centre with similar characteristics to the Avino system, which include the following (Paulter 2006):
• Occur on a topographic high.
• Strong to intense silicification and brecciation.
• Easterly trending stockwork system similar to the trend of the Avino Vein.
• Similar temperatures of formation to Avino.
• Presence of an intersecting northwesterly trending vein system (la Estella at San Jose and San Juventino at Avino).
• Emplacement along a northerly trending, deep crustal fault zone (defined by the Aguila Mexicana Vein at Cerro San Jose and the felsic dyke at Avino).

Reserves

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Mining Methods

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Heavy Mobile Equipment

Fleet data has not been reported.

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

CommodityUnits20192018201720162015
Silver oz 153,372 434,020 590,765 822,689 907,384
Gold oz 581 1,955 2,675 3,427 4,326
Silver Equivalent oz 215,148 592,098 789,157 1,073,062 1,218,351
All production numbers are expressed as metal in concentrate.

Operational metrics

Metrics20192018201720162015
Tonnes milled 56,179 dmt 79,140 dmt 81,045 dmt 115,047 dmt 121,774 dmt
Ore tonnes mined 80,587 t 108,943 t 93,291 t
Daily milling capacity 500 t

Production Costs

Commodity201920182017
Cash costs (sold) Silver Equivalent 21.8 / oz  USD 10.4 / oz  USD 8.04 / oz  USD
All-in sustaining costs (sold) Silver Equivalent 24.8 / oz  USD 11.9 / oz  USD 9.5 / oz  USD

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 9, 2026

Workforce

Aerial view:

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