Amineral is observed to become soft and crumbly and develop a reddish color as it undergoes weathering, what process has most likely taken place?

Corrosion

Explanation:

The corrosion is a natural process that occurs because of the influence of the water and wind. It is part of the processes of erosion. It manages to soften the minerals, make them less stable and more crumbly. It can easily be noticed as it gives the mineral reddish, or rather dark orange color. This process occurs where the humidity is high, as the water plays a crucial role for this process to occur. Apart from occurring in nature, this process is also a big problem with the refined metals, as it gradually destroys them, and taking in consideration that the metals are included in all sorts of objects, it can make a lot of damage.

i'm not sure

explanation:

i'll try whatever you got

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.