The town was also important for the pharaohs because it sat close to one of the largest sources of high-quality granite quarries in the country, providing stone for many of its finest temples.
The whole town industry was based on the extraction and processing of granite. 
mnli hypothesis: The whole town industry was based on the extraction and processing of granite.  premise: The town was also important for the pharaohs because it sat close to one of the largest sources of high-quality granite quarries in the country, providing stone for many of its finest temples.