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4.5 billion years old Fukang Meteorite

The Fukang meteorite was found in the mountains near Fukang, China in 2000. Pallasites are a type of stony–iron meteorite with beautiful olivine crystals.

Fukang Meteorite pallasite

Acasta Gneiss, NW Canada. The oldest known rock on Planet Earth (4.031 Billion years old +/- 0.003 Billion years). I've touched this exact piece at the Smithsonian Museum of Natural History in DC!

A 2-billion-year-old rock found in the Sahara desert has been identified as a meteorite from Mars’ crust, and it contains ten times more water than any other Martian meteorite found on Earth. It also contains organic carbon. Credit: NASA