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ALROSA Finds Largest Diamond in Zarnitsa's History

May 25, 2016 10:40 AM   By Rapaport News
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ALROSA discovered a 207.29-carat rough diamond at its Zarnitsa mine in the Russian republic of Yakutia.

The gem-quality diamond measuring 38 х 37 х 18 millimeters is the largest found since open-pit mining started at the Zarnitsa pipe in 1999. As yet unnamed, the stone has a “transparent transitional crystal form” and slightly grooved surface.

In the first quarter, diamond production at Zarnitsa was 2.3 times the output from a year ago because of an increase in open-pit mine capacity, ALROSA pointed out.



“The modern mining and processing technologies ensure a high degree of diamond preservation,” said Gleb Shmarov, chief geologist at ALROSA’s Udachny Mining and Processing Division, which discovered the stone.
Tags: Alrosa, large diamonds, mining, Rapaport News, Russia, Udachny Mining and Processing Division, Yakutia, Zarnitsa
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