But there are questions over privatisation of mining giant Alrosa, the world's largest producer.

Angara Airlines, based in Irkutsk, has launched new flights from Novosibirsk to Irkutsk and diamond-mining Mirny in the Sakha Republic.

The world's top diamond producer is on course for a $10 billion valuation, say analysts.

Anatoly Usoltsev, 55, vanished, but it took mining specialists from Kuzbass region to locate him.

Consortium featuring Russian businessman line up bid to invest in mine which develops deposits in Siberia.

Geologists say as much as 44.8 billion roubles-worth has been found in valley to the north of famous range.

Deep below the earth, we spend three days with the men and women working at the frontline to keep Russia, and the world, fuelled.

Subsidence from old coal mine a possible cause of latest mystery hole.

269 workers at Olimpiada gold mine in Krasnoyarsk region test virus positive.