Meteorite weathering

Two children are sitting within the corrosion grooves of the Willamette meteorite. Considerable mass has been lost to terrestrial weathering.
A Sikhote-Alin meteorite with visible rust.

Meteorite weathering is the terrestrial alteration of a meteorite. Most meteorites date from the oldest times in the Solar System and are by far the oldest material available on our planet. Despite their age, they are vulnerable to the terrestrial environment. Water, chlorine and oxygen attack meteorites as soon as they reach the ground.


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