SNC (Shergotty-Nakhla-Chassigny) achondrite S-basalt (pyroxene-plagioclase).
This Mars meteorite has given clues to the presence of water on the planet.
Refs.:
http://www-curator.jsc.nasa.gov/curator/antmet/mmc/Shergot.pdf
http://news.bbc.co.uk/1/hi/sci/tech/1135028.stm