News

ALROSA recovered a large diamond from Nyurbinskoye placer deposit

PJSC ALROSA announced the recovery of a 214.65-carat diamond from Nyurbinskoye placer deposit

diamond world news service

The crystal measures 42.11 by 34.26 by 16.07 mm, and is translucent with a grey hue. Traces of dissolution–tetragonal cavities, etching channels and caverns–are observed on the surface. The stone contains cracks filled with graphite and sulphide composition. The diamond is 4 Black Clivage/Makeable Grey.

The Nyurbinskoye placer deposit is localized in the immediate vicinity of the Nyurbinskaya pipe primary deposit, which is a source of diamonds. Sands from the deposit are processed in summer.

The share of this placer deposit in ALROSA Group’s production totaled 5% in 2015. Identified reserves under JORC code as of January 1, 2015, amounted to 13.5 million carats.

Nyurba Mining and Processing Division operates at the Nakyn ore field and develops Nyurbinsky and Botuobinsky open-pit mines, and same-name alluvial placers. In Q1 2016, the Division produced 2.16 million carats.

Follow DiamondWorld on Instagram: @diamondworldnet
Follow DiamondWorld on Twitter: @diamondworldnet
Follow DiamondWorld on Facebook: @diamondworldnet

Akoirah by Augmont Introduces ‘Made of Us’ Valentine’s Edit

Botswana Accelerates Mining Exploration as Diamond Market Weakens

Luanda Accord Expands as Namibia Signs; GJEPC and DMCC Advance Toward NDC Membership

Botswana Unearths Ultra-Rare 37.41-Carat Half-Pink, Half-Colourless Diamond

Anglo American CEO Signals Likely Consortium Sale of De Beers