Overview
Status | Inactive / Suspended |
Mine Type | Underground |
Commodities |
|
Mining Method |
- Resue mining
- Undefined backfill
|
Production Start | ... |
Mine Life | 6.25 years (as of Jan 1, 2021) |
The Revenue-Virginius Mine has been mined historically at various intervals since the late 1800s and has seen significant investment in drilling, development and infrastructure. Most recently owned and operated by Aurcana Silver Corporation from 2019 to 2022, production recommenced in 2021 and a feasibility study was completed in 2022. Operations were halted following financial hardships faced by Aurcana and the RV Mine was placed into receivership in March 2022.
April 14, 2023 Aurcana announces that trading in the Company’s stock has been halted. The Company’s stock on the TSX.V will be suspended. |
Source:
p. 1
Aurcana Silver Corporation owns the Revenue-Virginius Mine, in Colorado, currently in receivership.
April 14, 2023 – Aurcana Silver Corp. announces that trading in the Company’s stock has been halted. In addition, as the Company currently has only one director and is not in compliance with the TSX.V’s policies, trading in the Company’s stock on the TSX.V will be suspended.
Contractors
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Deposit Type
- Epithermal
- Vein / narrow vein
- Volcanic hosted
Summary:
The Project’s vein deposits and the several associated veins within the mine are classified as volcanic-hosted 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 Vir ........
Mining Methods
- Resue mining
- Undefined backfill
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 st ........
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Flow Sheet:
Summary:
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Source:
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Reserves at December 31, 2021:
The reserve estimate is based on a mine design using this cutoff with adjacent lower grade incremental stopes included in the design. Incremental material is included in the reserves based on an incremental stope cutoff grade of $323.61/st.
Mineral Resources: Cut-off calculations assume average metallurgical recoveries equal to: Gold (68%), Silver (94%), Lead (95%), Copper (91%) and Zinc (94%). Inferred Mineral Resources are limited using a NSR cut-off US$200/st.
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
577 k tons
|
Silver
|
25.38 oz/ton
|
14,646 koz
|
Proven & Probable
|
577 k tons
|
Zinc
|
2.13 %
|
24,600 k lbs
|
Proven & Probable
|
577 k tons
|
Lead
|
4.93 %
|
56,843 k lbs
|
Proven & Probable
|
577 k tons
|
Gold
|
0.06 oz/ton
|
33.9 koz
|
Measured & Indicated
|
1,013 k tons
|
Silver
|
20.5 oz/ton
|
20,506 koz
|
Measured & Indicated
|
1,013 k tons
|
Zinc
|
1.98 %
|
40,638 k lbs
|
Measured & Indicated
|
1,013 k tons
|
Lead
|
4.23 %
|
85,534 k lbs
|
Measured & Indicated
|
1,013 k tons
|
Copper
|
0.23 %
|
4,409 k lbs
|
Measured & Indicated
|
1,013 k tons
|
Gold
|
0.05 oz/ton
|
53 koz
|
Inferred
|
320 k tons
|
Silver
|
30.7 oz/ton
|
9,881 koz
|
Inferred
|
320 k tons
|
Zinc
|
2.43 %
|
15,416 k lbs
|
Inferred
|
320 k tons
|
Lead
|
4.99 %
|
32,680 k lbs
|
Inferred
|
320 k tons
|
Copper
|
0.25 %
|
1,601 k lbs
|
Inferred
|
320 k tons
|
Gold
|
0.07 oz/ton
|
23 koz
|
Mine Management:
Job Title | Name | Profile | Ref. Date |
.......................
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.......................
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Dec 13, 2023
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