The terms ore mineral and mineral deposit were originally applied only to minerals and deposits from which metals are recovered, but present usage includes a few nonmetallic minerals, such as barite and fluorite, that are found in the same kinds of deposit as metallic minerals.
Steel mills locked into long-term ore-purchasing contracts can be tempted to default on those agreements when the spot, or noncontract, price of iron ore falls below their contracted prices.
Major mining companies have succeeded largely in their push for short-term iron ore pricing, breaking with the four-decade-old tradition of annual benchmark prices.
The only long-term profitable ore to be mined was borax, which was transported out of the valley with twenty-mule teams.
China's largest steel maker, Baosteel, and the Australian mining company Rio Tinto have agreed on the highest price increase in at least a decade in iron ore term contracts, the companies announced on Monday.
In terms of the ore dip and width, the gravity flow of the blasted ore and waste rock was investigated using tracing with labeled markers.
While Cleveland's balance sheet was none too healthy (its debt was 66% of capitalization in 2001), it was able to pick up distressed assets for little or no cash, plus the assumption of the mines' liabilities, along with long-term contracts for ore.
The word cobalt is derived from the German, from kobold meaning "goblin", a superstitious term used for the ore of cobalt by miners.
Because the ores are dominated by crystalline silica, silicosis and related diseases (e.g., silicotuberculosis) could become long-term health problems in ore processors who do not use appropriate respiratory protection or dust control measures (National Institute for Occupational Safety and Health 2002).
It was established in 1876 following the discovery of gold by Fred and Moses Manuel, and its name was inspired by the lode mines in the area, an outcrop of ore being termed a "lead".
Under the terms of the sale, a consortium — including Posco of South Korea, one of the world's largest steel makers, and China Steel of Taiwan — will gain long-term access to iron ore from the mines proportionate to the new ownership stakes.
