In 2013, two small fragments of the Tissint Martian meteorite were "planted" in Arizona's Sonoran Desert in order to deliberately expose them to terrestrial desert weathering. The first piece was recovered for analysis after 12 months of exposure, and the remaining fragment in 2016.
The Meteorite Center of ASU conducted these experiments; details can be found at :
If you just want the PDF of the experiment, it may be found here:
Edited by bob71741, 27 August 2018 - 11:46 AM.