Homework:

The only ore of chromium is the mineral chromite. United States chromium consumption is equivalent to about 14% of all the chromite ore mined each year. In the western hemisphere, chromite ore is produced only in Brazil and Cuba; the United States, Mexico and Canada do not produce chromite. (The Stillwater Complex in Montana is the biggest chromium deposit in the United States, however it is not producing chromite ore at this time.) By comparison, about 80% of world production of chromite comes from India, Kazakhstan, Turkey and southern Africa. Southern Africa itself produces about half of this.

Geologists estimate that there are about 11 billion tons of chromium ore (chromite) in the world that could be mined. Most of these resources are found in southern Africa. This is enough chromium ore to meet world demand for hundreds of years into the future.

Source: http://www.mii.org/Minerals/photochrom.html

Another, german source, speaks of enough chromium für 300 years. I don´t want to post it here, because i guess most people cannot read german, but if you want, I´ll send you the link.

Worldproduction of chromite in 2005 was 19,300,000 tons

Source:

http://www.bmwi.de/BMWi/Redaktion/PDF/J-L/konzentration-weltbergbauproduktion,property=pdf,bereich=bmwi,sprache=de,rwb=true.pdf

You know Samancor ? A chromite miner in South Africa ? And this is only one ! Look:

... Samancor operates the Eastern Chrome Mines, which comprises seven mines; Jardlust, Montrose, Doornbosch, Steelpoort, Annex Grootboom and Tweefontein. The Western Chrome Mines are located near Mooinooi on the western limb of the BIC in the Northwest province. Western Chrome mines comprises of five mining operations, the Waterkloof, Buffelsfontein, Elandsfontein, Millsell and Mooinooi mines. The total combined ore reserves exceed 450 million tons, calculated to a depth of 300 metres, with an annual production capacity of more than 4 Mt.

Samancor's total chromite resources exceed 1,8 billion tons and are expected to support current mining activity for well over 200 years at current rates of extraction. While some ore is exported, more than 80% is converted into three grades of ferrochrome (charge chrome, intermediate-carbon ferrochrome, and low-carbon ferrochrome) ...

You find this here:

http://www.mbendi.com/indy/ming/chrm/af/sa/p0005.htm

And:

I have no intentions. I own 1 or 2 shares of Noront. I´d like to see them traded at 7 $, or 10 $ or 20 $. As soon as possible. But there is not only blue sky. Sometimes there are some clouds. They may vanish. Maybe it will never start raining out of them. But be aware of them. They could reach you. Hopefully they don´t ...