By Jason Mitchell Once defined by war and blood diamonds, Sierra Leone is now looking to turn its rich but underdeveloped ...

We're after pure gold, but rock ... large natural cinnabar deposits, there wasn't any around where we were based). The bad news was that it was pretty low-grade stuff. Good cinnabar ore has ...

Sand does renew naturally, but in many regions, natural ... rock. Gravel is larger particles. Our research has found ...

Study on the Height of Water-Conducting Fracture Zone of Overburden Rock in Filling Mining of Gold Mine ...

The world’s biggest iron ore miners face a difficult start to the year, after extreme weather impacted production and as their biggest customer China braces for a trade war. This week ...

Rising production coupled with a rising price has reinvigorated Australian gold which has reclaimed ... thermal coal to sit behind iron ore, liquefied natural gas (LNG) and steel-making coal.

At 2.5 billion years old and weighing in at 2.5 tonnes, the banded iron formation is so heavy that Museum engineers had to reinforce the floor underneath it in Hintze Hall. 'The rock tells a ...

We're after pure gold, but rock ... large natural cinnabar deposits, there wasn't any around where we were based). The bad news was that it was pretty low-grade stuff. Good cinnabar ore has ...