"Our own origins are locked up in these pieces of rock. They are pristine material from the beginning of the solar system and hold the ingredients of life. "
That rather depends on the meteorite (if anything survives). Chondrites - especially the carbonaceous chondrites are almost pristine - only lacking some of the volatile elements with very early dates, and yes, they contain amino acids; but many other types of meteorite are mineralogically highly evolved with a large range of dates; eucrites from Vesta are over 200 My younger than most meteorites, whilst shergottites from Mars are as young as 180My.
If this chunk did hit the surface, there's not a huge chance of finding it; 90%+ of all known meteorites are stony, which to the untrained eye look like - well - stones. But good luck to anyone who does find a meteorite - just hope it's a pallasite:
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