Mexico

San Gonzalo Mine

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Categories

Overview

Mine TypeUnderground
Commodities
  • Silver
  • Gold
Mining Method
  • Cut & Fill
  • Shrinkage stoping
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ShapshotAvino reported that by Q4 2019, mining at the San Gonzalo Vein reached the end of its current resources, and underground mining activities at the mine were stopped. However, the mine remains open for continued exploration at different levels of the mine. No operation for the San Gonzalo Vein’s mineralization has been reported since 2020.

Reclamation activities are estimated to begin in 2025 for the San Gonzalo Mine.

Owners

SourceSource
CompanyInterestOwnership
Avino Silver & Gold Mines Ltd. 99.67 % Indirect
Avino holds a 99.67% interest in the 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).

Deposit type

  • Breccia pipe / Stockwork
  • Vein / narrow vein
  • Hydrothermal

Summary:

The San Gonzalo Vein is located approximately 1.4 km northeast of the Avino Vein. The San Gonzalo Vein system constitutes a strongly developed vein system over 25 m wide, trending 300° to 325°/80° northeast to 77° south. It is characterized by banded textures and open-space filling. The main vein has an average width of 2 m, but the silicapyrite or iron oxide-sericite alteration with additional stock working extends across 300 m, south of the main San Gonzalo Vein to the Los Angeles Vein. 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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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

CommodityUnits20192018201720162015
Silver oz 000000434,020590,765822,689907,384
Gold oz 0001,9552,6753,4274,326
Silver Equivalent oz 000000592,098789,1571,073,0621,218,351
All production numbers are expressed as metal in concentrate.

Operational metrics

Metrics20192018201720162015
Tonnes milled 0000079,140 dmt81,045 dmt115,047 dmt121,774 dmt
Ore tonnes mined 80,587 t108,943 t93,291 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

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 19, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 19, 2023

Aerial view:

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