Overview
Status | Care and Maintenance |
Mine Type | Open Pit |
Commodities |
- Copper
- Gold
- Silver
- Molybdenum
|
Mining Method |
|
Production Start | ... |
Huckleberry mine operations were suspended in August 2016. The mine remains on care and maintenance status until the economics of mining improve.
Site personnel continue to focus on maintaining site access, water management (treatment and release of mine contact water into Tahtsa Reach), maintenance of site infrastructure and equipment, mine permit compliance, environmental compliance monitoring and monitoring tailings management facilities. |
Source:
p. 45
Company | Interest | Ownership |
Imperial Metals Corp.
|
100 %
|
Indirect
|
Huckleberry Mines Ltd.
(operator)
|
100 %
|
Direct
|
Huckleberry Mines Ltd. (HML) is owner/operator of the Huckleberry copper. Imperial holds 100% of the shares of HML through HML Mining Inc., a wholly owned subsidiary of Imperial.
Contractors
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Summary:
The Huckleberry mine is a typical porphyry copper-molybdenum deposit. It is characterized as a calc-alkalic coppermolybdenum type mineralization. These deposits are typically hosted in intrusive rocks, usually of granodioritic or quartz monzonitic composition, and in volcanic rocks surrounding intrusives. These deposits are often large, oval, inverted-cone shaped deposits, and display multiple zones of hydrothermal alteration and sulphide mineralization. The hydrothermal alteration is usually extensive and consists of an inner potassic zone closely associated with the sulphide mineralization, surrounded by propylitic alteration associated with pyrite. Phyllic and argillic alteration can be either part of the zonal pattern between the potassic and propylitic zones or can be somewhat irregular or tabular younger zones superimposed on older alteration and sulphide assemblages. Chalcopyrite, bornite, chalcocite, enargite, other copper minerals, molybdenum and pyrite are typically the dominant sulphides. The mineralization is dominantly structurally controlled, mainly through stockworks, veins, vein sets, breccias, disseminations and replacements.
Mineralization is similar in both the MZ and EZ deposits and is contained within altered volcanic rocks. Copper mineralization is predominantly chalcopyrite, occurring as fine to medium grained aggregate filling veinlets and fractures, and as fine grained disseminations in the envelopes around the veinlets. Molybdenum occurs ........
Summary:
Huckleberry is an open pit copper/molybdenum mine. The loading equipment is a combination of a P&H 2100 electric shovel, Komatsu PC2000 and PC3000 excavators, and Caterpillar 992 loaders. When in operation, the haulage fleet includes Caterpillar 777C’s, 785B’s and 785D’s.
Source:
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Source:
Summary:
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Production:
On January 6, 2016, HML suspended pit mining operations. Stockpiles were then milled until the end of August 2016. Huckleberry mine remains on care and maintenance.
Commodity | Units | 2016 | 2015 |
Copper
|
lbs
| 20,438,051 | 43,273,334 |
Gold
|
oz
| ...... | ...... |
Silver
|
oz
| ...... | ...... |
All production numbers are expressed as metal in concentrate.
Operational Metrics:
Metrics | 2016 | 2015 |
Daily milling rate
| 18,941 t | 18,529 t |
Daily milling capacity
| 20,000 t | |
Tonnes milled
| 4,621,709 t | 6,763,061 t |
Reserves at December 31, 2016:
Cut-off grade 0.150% Copper (excluding stockpiles)
Category | Tonnage | Commodity | Grade |
Probable
|
34,960,000 t
|
Copper
|
0.324 %
|
Financials:
| Units | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
Capital expenditures
|
M CAD
| ...... | ...... | ...... |
......
|
0.003
|
0.03
|
Revenue
|
M CAD
| | | |
|
|
|
Operating Income
|
M CAD
| | | |
|
|
|
Pre-tax Income
|
M CAD
| | | |
|
|
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After-tax Income
|
M CAD
| | | |
|
|
|
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Mine Management:
Job Title | Name | Profile | Ref. Date |
.......................
|
.......................
|
|
Apr 8, 2023
|
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Corporate Filings & Presentations:
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