[meteorite-list] What are the top 10 most scientifically important meteorites?

[ensoramanda at ntlworld.com]

Hi all,

Just thought it might be interesting to discover list members opinions on what they would choose as the most important meteorites with regard to science? Which ones have been the most significant in increasing our understanding of the evolution of our solar system, and what they have taught us?

Graham Ensor, UK.