It's an open-pit mine, formed around a kimberlite pipe, a rare type of volcanic rock formation that can contain high ...

A fascinating discovery has emerged from one of the world's largest diamond mines, revealing that diamonds can do more than dazzle-they can act as time capsules from the Earth's deepest layers.

The Debswana Jwaneng Mine in Botswana, is the world's richest diamond mine by value, being worth about £1 billion. The mine is managed by Debswana, which is a joint collaboration between the ...

It is a mineral used to make types of plaster which coat our homes, schools and offices - and in Cumbria sits the world's deepest gypsum mine. Outside the small village of Long Marton, against the ...