http://xkcd.com/54/
There are celestial bodies with more heavy metal content than the earth, and their are celestial bodies that have less… and then there’s Scarlett Johanssen but that’s a different topic.
We have observed other planets that are amazingly similar to our own, does this indicate the existence of God? No. Differentiation of elements throughout the universe indicate differentiation of cooling rates after the big bang (see red-shift for proofs of the big bang). Same thing happens in pockets of volcanic magma, as some elements cool first they form a solid mass of that particular element. As the other elements cool slower, they rise farther and are deposited separate of the main mass (thus gold veins, ruby deposits, etc.)
Well, if we can observe this process occurring naturally on the planet, and in the universe (see reaction star formation) what in this would indicate an unnatural power?
Maybe God exists, maybe not… but the concentration of heavy metals on our planet (which isn’t more or less than other known celestial bodies) doesn’t indicate anything except the natural differentiation of matter as exhibited in a cooling process. Just look at a lava-lamp, if the person who gave you the original argument was correct… then there’d be an equal distribution of ‘blob’ (wax) throughout the lamp. But this is observably not so, some sections are heating, expanding, and rising… others are cooling, contracting, and sinking. Thus pick 10 random points within that lamp and not all points will have the exact same concentration of wax.
If there was actual definitive proof of God, anywhere… you can bet your brass buttons it would be posted all over CNN.COM. As it is, you’ll find as many false peices of ‘evidence’ proving the existence of God as you will find false evidence proving that ‘the US engineered 9/11′ or that ‘aliens secretly control the Gov’t’.