What are the common causes of stone cracks and how can they be prevented or repaired?

Common causes of stone cracks include impact damage, weathering, and structural stress. To prevent cracks, it is important to avoid heavy impacts, maintain proper drainage to prevent water damage, and ensure proper installation to reduce structural stress. Cracks can be repaired by filling them with epoxy or using specialized stone repair products. Regular maintenance and inspection can help identify and address cracks early on to prevent further damage.