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Slightly Weathered Boulder on MarsSlightly Weathered Boulder on Mars
COSMOCHEMISTRY iLLUSTRATEDWeathering Rinds on Mars
“Humphrey”, Gusev Crater, Mars
~30 cm
NASA/JPL/Cornell
Weathering Rinds, Earth and MarsWeathering Rinds, Earth and Mars
COSMOCHEMISTRY iLLUSTRATEDWeathering Rinds on Mars
Sak et al. (2004) McSween et al. (2004)
Weathering rinds on a terrestrial boulder (Costa Rica) and on the Humphrey boulder on Mars.
~0.5 cm