* Quartz (SiO2) is a very hard and chemically inert mineral. It is resistant to acids and bases, and its strong silicon-oxygen bonds make it difficult to break down.
* Other components of granite:
* Feldspar: While relatively stable, feldspars are susceptible to chemical weathering, especially from acidic rain. This process can lead to the formation of clay minerals.
* Mica: Micas are more susceptible to weathering than quartz. They can break down into clay minerals and other weathering products.
In summary: While all minerals in granite can weather over time, quartz is the most resistant due to its hardness and chemical inertness.
