* Composition: Granite is a hard, igneous rock composed of quartz, feldspar, and mica. These minerals are very resistant to weathering. Limestone, on the other hand, is a sedimentary rock primarily composed of calcium carbonate. It is softer and more porous than granite.

* Weathering Processes:

* Chemical weathering: Limestone is susceptible to acid rain, which dissolves the calcium carbonate. Granite is less affected by acid rain due to the chemical makeup of its minerals.

* Physical weathering: While both rocks can experience physical weathering (e.g., frost wedging), the more porous nature of limestone makes it more prone to cracking and breaking down.

* Durability: Granite has a much higher resistance to erosion and decay, meaning it will hold its shape and features for a much longer period.

In conclusion, due to its composition and resistance to weathering, a granite statue will generally last much longer than a limestone statue.