I just wanted to clarify this post, even though I do not think anyone has any concerns about the availability of gallium.

From the post, "Gallium is an element obtained as a by product of the production of metals such as Alumuninium and Zinc. Although an element it does not occur naturally. There is more gold in the world than Gallium"

This is a bit misleading. Although gallium does not exist in the elemental form (zero oxidation state) naturally, it does occur naturally as gallium (3+ oxidation state) compounds. Gallium is obtained as a by product of mining, processing other metals, etc. Although there may be a lot more gold than gallium in the world, this means specifically "in the world that has been taken out of the ground". The natural abundance in the earth's crust of gold = 0.0000031% and gallium = 0.0019%, so there is a lot more gallium in the earth's crust than gold. As far as I know, there is no gallium mining specifically (no significant demand, yet!).

As far as toxicity goes, consider cadmium in batteries, or mercury in light bulbs, etc. This puts that into perspecitive.

Quan