This is a ring of cobalt atoms.

Meanwhile, the United States imports around 8,000 tons of cobalt per year.

Katanga Mining Limited, a Swiss owned company, owns the Luilu Metallurgical Plant, which has a capacity of 175,000 tonnes of copper and 8,000 tonnes of cobalt per year, making it the largest cobalt refinery in the world.

References Anglo American The Alternative Report External links Anglo American Platinum 2007 annual report award for Anglo Platinum

According to the current register, there are 193 radioactive lightning rods in Republika Srpska that contain cobalt 60 at standard radioactivity level, ranging from 3.7 to 7.4 GB, or 152 whose half life is 13 years.

The Democratic Republic of Congo produces more than 3 percent of the world s copper and half its cobalt, most of which comes from Katanga .

Similar effects from discharges into the water column are likely to occur with mining of polymetallic sulphides and cobalt crusts.

Furthermore, mobile phone batteries contain toxic substances, including heavy metals like cobalt, lead, and zinc.

Africa is estimated to hold more than 10 of global oil reserves and one third of reserves of cobalt and base metals.

In Mexico, in 1983, an unlicensed teletherapy source containing cobalt 60 was sold as scrap metal.

After a major rehabilitation program, the company restarted copper production in December 2007 and cobalt production in May 2008.

Translated to another system of units, this is nearly the same as the decay rate of cobalt 56 (56Co), whose half life is 77 days.

After its discovery, the only source for nickel was the rare Kupfernickel but, from 1824 on, nickel was obtained as a byproduct of cobalt blue production.

It was recalled that some of the studies carried out by the Authority had suggested that there was a greater risk of environmental damage from exploration for sulphides and crusts as compared to exploration for polymetallic nodules.

For example, the metals cobalt and nickel had been assigned the atomic numbers 27 and 28, respectively, based on their known chemical and physical properties, even though they have nearly the same atomic masses.

Notwithstanding further delays, the mine is due to open in 2007 and is expected to eventually produce 60,000 tonnes of nickel and 5,000 tonnes of cobalt per year.30

In fact, the atomic mass of cobalt is slightly larger than that of nickel, which would have placed them in backwards order if they had been placed in the Periodic Table blindly according to atomic mass.

These catalysts must be highly active, stable, and, for global scalability, composed of earth abundant elements, such as iron, nickel, or cobalt, not the scarce metals now used, such as ruthenium or iridium.

It stated that in the light of the prevailing economic trends, particularly the metal prices for cobalt, copper, manganese and nickel, increases in aggregate metal prices, to as high as twice their levels at March 1985, would be required to make the mining venture viable.

The general conclusion of the study was that at the current metal prices, the mining of polymetallic nodules for cobalt, copper, nickel and manganese from the deep seabed was not a viable proposition, either for an Australian company or for the Enterprise.

Moseley's experiments in X ray spectroscopy showed directly from their physics that cobalt and nickel have the different atomic numbers, 27 and 28, and that they are placed in the Periodic Table correctly by Moseley's objective measurements of their atomic numbers.

Even a relatively small amount of material such as cobalt 60 used in radiotherapy could cause serious harm if combined with conventional explosives in a so called dirty bomb (or otherwise deliberately used to expose the public to dangerous radiation).