Operator: Lundin |
Location: Sweden |
Term of Stream: Life of Mine |
Stream Parameters: 100% of silver production |
Upfront Consideration: US$78M |
Cost Quartile: 2nd |
Stream: Silver |
Primary Metal: Zinc |
Project Overview
The Zinkgruvan mine is an underground zinc-lead-silver mine owned and
operated by Lundin Mining and located approximately 250 kilometres
southwest of Stockholm, Sweden. This low-cost mine has been producing
on a continuous basis since 1857. The operation consists of an underground mine, processing plant and associated infrastructure, producing zinc, lead and copper concentrates.
Zinkgruvan employs a conventional underground crushing, grinding and flotation milling process producing zinc and lead concentrates which are shipped to smelters in Europe. A separate 0.3 Mtpa copper treatment line in the processing plant was commissioned during 2010. This line was further modified during 2011 to allow it the flexibility to treat zinc-lead ore as well as copper ore. Overall mine capacity is 1.35 Mtpa.
The Zinkgruvan orebodies are dominated by sphalerite and galena and are
generally massive, well banded and stratiform. Remobilization of galena
and silver has occurred in response to metamorphism and deformation, and
is most pronounced in the lead-rich western extension of Nygruvan and in
the Burkland area. Copper stockwork mineralization has been identified in
the structural hanging wall of the Burkland deposit. Chalcopyrite is the main
copper mineral and occurs as coarse disseminations and patches within
a marble host rock. Current mineral reserves are sufficient for a mine life
in excess of 10 years and excellent opportunities for ongoing reserve and
resource expansion exist at Zinkgruvan. Historically, the mine has been very
successful at resource conversion.
More Information
For more information about the Zinkgruvan mine, please visit Lundin Mining’s website at www.lundinmining.com. Cost quartile information is sourced from Wood Mackenzie byproduct cost curves for gold, zinc/lead, copper, nickel, and silver mines.
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