What are the challenges of maintaining the original color of marble sculptures?

Maintaining the original color of marble sculptures is a significant challenge due to various factors. Environmental exposure, such as pollution, humidity, and UV radiation, can cause discoloration and fading over time. Natural weathering processes also alter the surface, leading to loss of vibrancy. Additionally, improper cleaning or restoration techniques can further damage the marble's appearance. Experts employ advanced conservation methods to mitigate these effects, but the delicate nature of marble makes long-term preservation difficult. Understanding these challenges is crucial for art conservators and enthusiasts alike to protect these timeless masterpieces.