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Bolivia
Caballo Blanco Complex

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 Location:
17 km NE from Potosi, Bolivia

  Regional Office:
Blvrd Ramón G. Bonfil 439
Pachuca de Soto
Mexico
42084
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Silver
  • Zinc
  • Lead
Mining Method
  • Cut & Fill
  • Sub-level stoping
  • Avoca
Production Start...
The Caballo Blanco operational unit consists of three mines: Colquechaquita, Reserva and Tres Amigos, which supply the central plant, Don Diego, situated close to Potosi.
Latest NewsSantacruz Silver Reports 2022 Full-Year Record Production of 15,010,871 Silver Equivalent Ounces     January 26, 2023


Owners

Source: p. 1
CompanyInterestOwnership
Santacruz Silver Mining Ltd. 100 % Indirect
On March 21, 2022, Santacruz Silver Mining Ltd. completed the acquisition of a portfolio of producing assets located in Bolivia (the "Transaction").

As previously disclosed in the Santacruz Silver Mining Ltd. press releases dated October 13, 2021 and November 15, 2021, the transaction involved the acquisition of, among other things, a 100% interest in the Sinchi Wayra business which includes the producing Caballo Blanco mining complex ("Caballo Blanco").

Contractors

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Deposit Type

  • Epithermal
  • Vein / narrow vein


Summary:

The Caballo Blanco zinc, silver, lead mine, situated south of Potosi, is located in the Jayaquila – Victoria corridor, a 5-7 km north-south structural zone with three sectors, from north to south, the Colquchaquita, Reserva, and Tres Amigos mines. They are not described in the published literature. They are hosted by volcanic rocks of the Kari-Kari volcanic complex, with dimensions of 32 km north-south and 12 km wide, located on the SE side of the Los Frailes felsic volcanic field that covers an area of 8,500 km2 at altitudes of 4,000 – 5,200 masl. The history started with intrusion of small granitoids at about 25 Ma at Kumurana, at the southern end of the Kari massif, and Azanaques. These were followed by the formation of Kari at about 20 Ma that is interpreted to be a resurgent caldera with welded ignimbrite fill. Ash flows, domes and stocks formed in the Cebadillas episode at 17-10 Ma, including the Cerro Rico dome with Ag-Sn mineralization at 13.8 Ma (Zartman & Cunningham, 1995; Cunningham et al., 1996; Rice et al., 2005).

The rocks of the Kari complex are felsic, peraluminous, and rich in garnet, cordierite and tourmaline (Schneider, 1987).

Mineralization in its generality is characterized by being housed in philonian structures divided into three domain orientations:

1. Oriented at N 10° to 20° E, are Colquechaquita (Karina, Viviana, Camila), and some veins of Tres Amigos (Catalina, Milagros Este and Central);

2. Oriented N 1 ........


Mining Methods

  • Cut & Fill
  • Sub-level stoping
  • Avoca


Summary:

The Caballo Blanco project consists of three separate mines and one process plant operating as one to produce Zinc and Lead concentrates. An Important part of the supporting infrastructure includes 2 off-site power plants that produce supplemental electric power to the mines. The mines are relatively close together and located as follows:

Reserva and Tres Amigos Mines are located 31 km southeast of the city of Potosi, in the Canton Concepcion of the first section of the Tomas Frias Province of the Department of Potosi, at an average elevation of 4,536 masl.

Coquechaquita Mine is located 30 km southeast of the city of Potosi, in the Canton Concepcion of the first section of the Tomas Frias Province of the Department of Potosi, at an average elevation of 4,520 masl.

The Don Diego Process plant is located about 23 km Northeast of the city of Potosi, in the Don Diego Canton, Municipality of Chaqui, Cornelio Saavedra Province, of the Department of Potosi. At an elevation of 3,550 masl.

There is a 60 km drive from the mines to the Don Diego Processing plant.

As a unit, Caballo Blanco produces about 850 t/d of mineralized material. Approximately 60% of mine production is generated by conventional shrinkage and cut & fill methods. The remainder is produced by more modern trackless sublevel stoping. Run-of-mine mineralized material is hauled to the Don Diego Process plant in dump trucks.

Although each mine is currently ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2021
Silver Equivalent M oz  ......  Subscription required
All production numbers are expressed as metal in concentrate.

Operational Metrics:

Metrics2022
Daily processing capacity  ......  Subscription required
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Reserves at December 31, 2021:
The resources have been reported at a Zinc Equivalent (ZnEq) cut-off grade 2%.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 1.6 Mt Silver 217 g/t 11.2 M oz
Proven & Probable 1.6 Mt Zinc 7.4 %
Proven & Probable 1.6 Mt Lead 2.1 %
Proven & Probable 1.6 Mt Silver Equivalent 525 g/t 27 M oz
Measured & Indicated 1.6 Mt Silver 346 g/t 17.8 M oz
Measured & Indicated 1.6 Mt Zinc 13.5 %
Measured & Indicated 1.6 Mt Lead 3.5 %
Measured & Indicated 1.6 Mt Silver Equivalent 898 g/t 46.2 M oz
Inferred 2.3 Mt Silver 241 g/t 17.8 M oz
Inferred 2.3 Mt Zinc 12.2 %
Inferred 2.3 Mt Lead 2.4 %
Inferred 2.3 Mt Silver Equivalent 718 g/t 53.1 M oz



Heavy Mobile Equipment as of December 21, 2021:
HME TypeModelQuantity
Bolter ....................... Subscription required ....................... Subscription required
Bolter ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Truck (dump) ....................... Subscription required ....................... Subscription required
Truck (dump) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Nov 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 10, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
Subscription required - Subscription is required.

News:

NewsDate
Santacruz Silver Reports 2022 Full-Year Record Production of 15,010,871 Silver Equivalent Ounces January 26, 2023

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