Mining at Alrosa's Zarya to start next year

By Marleny Arnoldi      / July 20, 2018 / www.miningweekly.com / Article Link

Russian diamond mining group Alrosa’s Zarya diamond deposit in Sakha (Yakutia) is in its final stages before diamond mining will start next year.

Since 2016, ten-million-cubic-metres of overburden were removed from the openpit mine, reaching a depth of 100 m. Drainage ditch construction, and installation and adjustment of the pumping unit at the mine will be completed this year.

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The openpit mine construction will be completed in 2019 and is expected to reach mining capability of 1.2-million tonnes of ore yearly in 2021.

Total diamond resources of the deposit are estimated to contain 3.5-million carats of diamonds worth more than $1-billion. Its development will allow replacing falling-out reserves of the Komsomolskaya pipe – on which mining operations are nearing completion.

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The development of Zarya is planned to a depth of 300 m with the extraction of a total 12-million tonnes of ore, depleting in 2030.

The average diamond content is estimated at 0.28 c/t of ore. The total investment will be about 12-billion ruble.

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