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United States
Revenue–Virginius (Ouray) Mine

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 Location:
8.4 km SW from Ouray, Colorado, United States

  Regional Office:
Suite 850, 789 West Pender Street
Vancouver
British Columbia, Canada
V6C 1H2
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Fax604.633.9179
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Silver
  • Gold
  • Lead
  • Copper
  • Zinc
Mining Method
  • Resue mining
Production Start...
Mine Life6.5 years (as of Jan 1, 2018)
Jan. 10, 2022 - Operations are continuing to focus on the completion of the #1 Alimak raise hoist / elevator system which will enable efficient movement of men and materials between the 2000 level and the four levels being developed above 2000. Completion of the #1 Alimak raise hoist / elevator project remains targeted for May 2022.
It is anticipated that the mill will resume operations in mid-January 2022 and will run as stope ore is available.


Owners

Source: p. 1
CompanyInterestOwnership
Aurcana Silver Corp. 100 % Indirect
Ouray Silver Mines, Inc. (operator) 100 % Direct
December 28, 2018 – Aurcana Corporation announces the closing of its previously announced acquisition of Ouray Silver Mines, Inc., which holds the Revenue-Virginius Mine.

Contractors

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Deposit Type

  • Epithermal
  • Vein / narrow vein


Summary:

The Project’s vein deposits and the several associated veins within the mine are classified as volcanichosted epithermal base and precious metal vein type deposits. These deposits are sometimes referred to as intermediate sulfidation epithermal deposits typically characterized as high in silver and gold with or without base metals, associated with andesite volcanism and structurally controlled.

At Virginius, chalcedonic quartz and cockscomb textures have been observed and late euhedral calcite is found in places. Fluid inclusion studies suggest that boiling did not occur in the system.

Mineralization in the District is found primarily in sub-vertical fissure veins and is classified as a telescoped epithermal quartz vein type deposit. The veins are characterized by somewhat constrained vertical extents generally less than 1,000 ft) and a vertical zoning that favors precious metals in the upper levels grading into more base-metal rich mineralization with depth.

The mineralogy found at the Project is consistent with this type of mineralization and includes galena, sphalerite, tetrahedrite, polybasite, chalcopyrite, pyrite, arsenopyrite, marcasite as well as ferroan rhodonite, calcian-ferroan rhodochrosite, quartz and chlorite.

Virginius Vein System
The most historically productive vein system at the Project is the Virginius and its northern extension, which is sometimes referred to as the Monongahela Vein. Reference to the ........


Mining Methods

  • Resue mining


Summary:

The resource models were constructed in such as way so as to model just the high grade vein structures without including mineralized material outside of the structures. In the Revenue area, the main vein and footwall veins have been modeled. The Terrible and Yellow Rose areas each have a single modeled vein. In the mining areas, the veins typically have dips around 70° but vary locally from approximately 50° to 85°.

The Virginius area 2000 level is accessed from the portal. Lower levels were historically accessed by a shaft/winze located at the 0 north/south point. Previous operators partially constructed two declines in 2014 to 2015 (Virginius South decline and Terrible decline) in an attempt to reach the 2210 level from the 2000 level; however, neither was completed. The main areas targeted for potential underground mining based on current drilling and geology. In the mining areas, the Virginius Vein widths typically range from 0.5 to 2.5 ft.

The Terrible area is located to the north of the Virginius area and has a bearing approximately 20° more westward than the Virginius area. Current identified mineralization is above the 2000 level. In the mining areas the Terrible Vein widths typically range from 0.5 to 1.5 ft.

The Yellow Rose area has been somewhat developed historically from the Revenue Virginius Tunnel. Though this vein had been mined historically with significant production at the Yellow Rose Mine, over 10,000 ft away along ........


Crushing and Grinding
Flow Sheet: Source


Processing

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Summary:

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Production:

CommodityProductUnitsLOM (Projected)
Silver Payable metal koz 12,865
Silver Metal in concentrate koz 13,543
Gold Payable metal koz  ......  Subscription required
Gold Metal in concentrate koz  ......  Subscription required
Lead Concentrate kt  ......  Subscription required
Lead Payable metal M lbs  ......  Subscription required
Lead Metal in concentrate M lbs  ......  Subscription required
Copper Metal in concentrate k lbs  ......  Subscription required
Zinc Concentrate kt  ......  Subscription required
Zinc Payable metal M lbs  ......  Subscription required
Zinc Metal in concentrate M lbs  ......  Subscription required


Reserves at July 30, 2018:

CategoryTonnage CommodityGradeContained Metal
Proven 244.4 k tons Silver 23.75 oz/ton 5,805 koz
Proven 244.4 k tons Gold 0.06 oz/ton 14.7 koz
Proven 244.4 k tons Lead 4.94 % 24,153 k lbs
Proven 244.4 k tons Zinc 1.84 % 9,011 k lbs
Probable 330.7 k tons Silver 25.39 oz/ton 8,397 koz
Probable 330.7 k tons Gold 0.05 oz/ton 18.1 koz
Probable 330.7 k tons Lead 4.99 % 32,985 k lbs
Probable 330.7 k tons Zinc 2.37 % 15,696 k lbs
Proven & Probable 575.1 k tons Silver 24.7 oz/ton 14,202 koz
Proven & Probable 575.1 k tons Gold 0.06 oz/ton 32.8 koz
Proven & Probable 575.1 k tons Lead 4.97 % 57,138 k lbs
Proven & Probable 575.1 k tons Zinc 2.15 % 24,707 k lbs
Measured 314.9 k tons Silver 23.1 oz/ton 7,273 koz
Measured 314.9 k tons Gold 0.06 oz/ton 19 koz
Measured 314.9 k tons Lead 4.86 % 30,634 k lbs
Measured 314.9 k tons Copper 0.26 % 1,609 k lbs
Measured 314.9 k tons Zinc 1.92 % 12,093 k lbs
Indicated 672 k tons Silver 18.1 oz/ton 12,135 koz
Indicated 672 k tons Gold 0.05 oz/ton 32 koz
Indicated 672 k tons Lead 3.74 % 50,230 k lbs
Indicated 672 k tons Copper 0.19 % 2,556 k lbs
Indicated 672 k tons Zinc 2 % 26,879 k lbs
Measured & Indicated 986.9 k tons Silver 19.7 oz/ton 19,408 koz
Measured & Indicated 986.9 k tons Gold 0.05 oz/ton 51 koz
Measured & Indicated 986.9 k tons Lead 4.1 % 80,864 k lbs
Measured & Indicated 986.9 k tons Copper 0.21 % 4,165 k lbs
Measured & Indicated 986.9 k tons Zinc 1.97 % 38,972 k lbs



Heavy Mobile Equipment:

Mine Management:

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

Total WorkforceYear
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
Feasibility Study Report 2018
Press Release 2018
Press Release 2018
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