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Mexico
Veta Grande Mine

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 Location:
7 km N from Zacatecas City, Zacatecas, Mexico

  Regional Office:
Boulevard Ramón G. Bonfil No.439 Zona Plateada
Pachuca de Soto
Hidalgo, Mexico
42084
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StatusTemporary Suspension
Mine TypeUnderground
Commodities
  • Silver
  • Gold
  • Lead
  • Zinc
Mining Method
  • Mechanized Cut & Fill
Production Start...
In March 2020, the Company suspended operations at the Veta Grande Project in order to facilitate capital upgrades to the processing plant and tailings storage facility. Discussions are ongoing between the parties with respect to this matter. Given the uncertainty as to the outcome of these discussions, the Company is unable to project if or when operations will resume at the Veta Grande Project.


Owners

Source: p. 9
CompanyInterestOwnership
Santacruz Silver Mining Ltd. 100 % Indirect

Contractors

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Deposit Type

  • Epithermal
  • Vein / narrow vein


Summary:

The Veta Grande Vein System
The Veta Grande vein system has been estimated to be approximately 16 km long. Concessions owned and operated by Santacruz cover approximately three km of strike length at the northwest end of the vein system. The alteration consists of a 1-5 m narrow and vein-proximal zone of argillic alteration within weak to moderate and pervasive silicification peripheral to the vein structures. Pervasive oxidation of the vein structure exists at surface and continues to an average depth of approximately 30 m.

The Veta Grande vein is the principal vein structure within the Veta Grande vein system and is historically the most important vein of the Zacatecas Mining District. It varies from two to 30 m in width, averaging approximately 10 m wide. The vein strikes northwest-southeast and dips between 60-90o to the southwest. The vein consists of quartz, chalcedony and calcite and often exhibits colloform and crustiform textures with small to medium (1-5 mm) euhedral quartz crystals filling open space cavities. The dominant sulfide mineralization consists of pyrite, sphalerite, and galena, with rare chalcopyrite.

In the immediate vicinity of the Armados and Garcia portals are three known veins situated in the structural footwall of the Veta Grande vein. These veins are identified as Armados vein, San Jose vein, and La Flor vein. Each vein is compositionally and texturally similar to the Veta Grande vein. Vein thickness varies from <1 to >5 ........


Mining Methods

  • Mechanized Cut & Fill


Summary:

Santacruz declared commercial production at the Veta Grande project on October 1, 2016 with initial mining activities focusing on the Veta Grande vein system from the Garcia underground mine and the La Canterra vein system from the Guadalupana underground mine.

Santacruz is actively mining vein material from the Garcia (Veta Grande vein system), Guadalupana and La Mecha underground (La Cantera vein system) using mechanized cut and fill stoping.


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits20202019201820172016
Silver oz  ......  Subscription required  ......  Subscription required150,725201,28528,027
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Equivalent oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20202019201820172016
Tonnes milled  ......  Subscription required149,891 t150,281 t102,110 t26,110 t
Daily milling capacity  ......  Subscription required750 t750 t500 t500 t
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Reserves at July 12, 2019:
The Veta Grande mine is currently operating at a cut-off value of 100 g/t AgEq.

CategoryTonnage CommodityGradeContained Metal
Inferred 3,954,729 t Silver 136 g/t
Inferred 3,954,729 t Gold 0.14 g/t
Inferred 3,954,729 t Lead 0.012 %
Inferred 3,954,729 t Zinc 0.11 %
Inferred 3,954,729 t Silver Equivalent 153.2 g/t 19,472,901 oz

Commodity Production Costs:

CommodityUnits20202019201820172016
Cash costs (sold) Silver Equivalent USD  ......  Subscription required  ......  Subscription required 38.7 / oz   24.5 / oz   29.7 / oz  
All-in sustaining costs (sold) Silver Equivalent USD  ......  Subscription required  ......  Subscription required 44.9 / oz   29.3 / oz   31.7 / oz  

Operating Costs:

Units20202019201820172016
Total operating costs ($/t milled) USD 148.3656.556.257.174

Financials:

Units20202019201820172016
Revenue M USD  ......  Subscription required  ......  Subscription required 2.9   3.7   0.9  
Gross profit M USD  ......  Subscription required  ......  Subscription required -6.4   -2.8   -1.2  
Operating Income M USD  ......  Subscription required  ......  Subscription required -6.4   -2.8   -1.2  
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required -6.4   -2.8   -1.2  



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 1, 2022
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Staff:

EmployeesYear
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Financial Review 2018
Management Discussion & Analysis 2018
Financial Review 2017
Management Discussion & Analysis 2017
Technical Report 2017
Financial Review 2016
Management Discussion & Analysis 2016
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