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Mexico
Velardena Mine (Velardena Restart)

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 Location:
4 km E from Velardena, Durango, Mexico

  Address:
Calle Rio Tamesis, No. 2505 Col. Las Magdalenas
Torreon
Chihuahua, Mexico
27010
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  • Overview
  • Owners
  • Geology
  • Mining
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  • Reserves
  • Costs & Financials
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  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeUnderground
Commodities
  • Silver
  • Gold
  • Lead
  • Zinc
  • Silver Equivalent
Mining Method
  • Resue mining
  • Mechanized Cut & Fill
Mining was suspended in November 2015 when a combination of low metals prices, dilution and metallurgical challenges rendered operations unprofitable.


Owners

Source: p. 10
CompanyInterestOwnership
Golden Minerals Company 100 % Indirect
The Project is held by Minera William S.A. de R.L. de C.V. (Minera William), a wholly owned subsidiary of Golden Minerals Company.

Contractors

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Deposit Type

  • Vein / narrow vein


Summary:

Although detailed petrologic studies of veins in the Velardeña property have not been completed, individual deposits within the nearby Santa María dome have been studied in some detail and found to correspond to both shallow epithermal and deeper-seated mesothermal styles of mineralization. Epithermal veins, often displaying banded and open-space-filling quartz, occur at the Industria Mine where they are clearly distal to the main intrusive mass. The higher-level veins at Velardeña appear to be of this type. Many veins, especially at deeper levels in the Santa Juana and Terneras mines, are dominated by high modal percentages of coarse and fine grained, polymetallic sulfides, have little silicate gangue, and occupy a position within and proximal to intrusions and their thermally metamorphosed aureoles.

True epithermal veins occur at Velardeña, but at depth the majority of veins, breccias, and massive sulfide replacements are mesothermal in character, commonly contain arsenopyrite, and may be related to a deeper intrusive source.

Two main vein systems are present on the Velardeña property. The first is the northwest striking system found in the Santa Juana deposit, while the second is the east-west trending vein array which includes the Terneras, San Juanes, Roca Negra and San Mateo deposits.

Mineralization consists primarily of calcite-quartz veins with minor calc-silicate hosted (“skarn”) and massive sulfide replacement bodies. All mineraliza ........


Mining Methods

  • Resue mining
  • Mechanized Cut & Fill


Summary:

During the year (2015) we used primarily shrinkage stope mining, standard mechanized cut and fill and overhand cut and fill mining methods.


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityProductUnits20152014
Silver Payable metal oz 326,65128,746
Gold Payable metal oz  ......  Subscription required  ......  Subscription required
Lead Payable metal M lbs  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required
Zinc Payable metal M lbs  ......  Subscription required  ......  Subscription required
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required
Silver Equivalent Payable metal oz  ......  Subscription required  ......  Subscription required

Operational Metrics:

Metrics20152014
Tonnes milled 80,736 t14,322 t
Daily milling rate 252 t

Reserves at March 1, 2022:

CategoryTonnage CommodityGradeContained Metal
Measured 385,000 t Silver 327 g/t 4,050,800 oz
Measured 385,000 t Gold 5.58 g/t 69,000 oz
Measured 385,000 t Lead 1.62 % 13,755,300 lbs
Measured 385,000 t Zinc 1.78 % 15,103,100 lbs
Indicated 883,800 t Silver 316 g/t 8,980,600 oz
Indicated 883,800 t Gold 4.88 g/t 138,500 oz
Indicated 883,800 t Lead 1.55 % 30,157,100 lbs
Indicated 883,800 t Zinc 1.76 % 34,345,500 lbs
Measured & Indicated 1,268,800 t Silver 319 g/t 13,031,400 oz
Measured & Indicated 1,268,800 t Gold 5.09 g/t 207,500 oz
Measured & Indicated 1,268,800 t Lead 1.57 % 43,912,400 lbs
Measured & Indicated 1,268,800 t Zinc 1.77 % 49,448,600 lbs
Inferred 1,709,200 t Silver 362 g/t 19,893,600 oz
Inferred 1,709,200 t Gold 4.8 g/t 263,800 oz
Inferred 1,709,200 t Lead 1.73 % 65,263,700 lbs
Inferred 1,709,200 t Zinc 1.86 % 70,201,100 lbs

Commodity Production Costs:

CommodityUnits2015
Cash costs Gold USD 22.2 / oz†  
† Net of By-Product.



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 20, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 20, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Technical Report 2022
................................... Subscription required 2020
Form 10-K 2016
Form 10-K 2015
Preliminary Economic Assessment 2014
Subscription required - Subscription is required.

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