Scientists have made a surprising discovery about the formation of rock. It seems that industrial waste known as slag that is ...

(Bloomberg) -- 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.

Oyu Tolgoi was 42% higher year over year. Titanium dioxide slag production declined 12% to 0.2 Mt from the year-ago quarter. Production at Iron Ore Company of Canada was 11% lower on a year-over ...