How long will it last? Graphic shows number of years left of various materials [pic] 17 years ago
Two investment opportunities:
Gold Canyon Resources - has a US property that contains what might be the only mineable deposit of gallium (other than as a byproduct of other mines) which is used in solar panels and other high tech stuff.
Geodex Minerals - Has perhaps the world's largest deposit of indium (plus lots of tungsten, moly etc) in New Brunswick, Canada
The bad news is that both are a long way from production and the economic climate is not helping. The good news is they are dirt cheap. They're both traded on the Toronto Venture exchange.