The longevity of an outdoor sculpture heavily depends on the type of stone used in its creation. Different stones offer varying levels of resistance to environmental factors such as rain, wind, temperature fluctuations, and pollution.

Granite, for instance, is one of the most durable choices for outdoor sculptures due to its dense composition and low porosity, making it highly resistant to weathering and erosion. Marble, while prized for its beauty and workability, is more susceptible to acid rain and frost damage over time. Sandstone and limestone, though easier to carve, tend to deteriorate faster in harsh climates unless treated with protective sealants.

The mineral composition of the stone also plays a critical role. Stones with high quartz content, like granite, withstand abrasion better, while calcite-based stones like marble are more vulnerable to chemical weathering. Additionally, the sculpture's location—whether in a coastal area with salt spray or an urban environment with pollution—can accelerate wear depending on the stone's properties.

To maximize durability, artists and conservators often consider both the aesthetic qualities and the environmental resilience of the stone. Regular maintenance, such as cleaning and sealing, can further extend the life of outdoor stone sculptures, preserving their beauty for generations. Choosing the right stone from the outset ensures the artwork withstands the test of time and nature.