Solid timber, natural stone, brass, leather and lime-based plasters all develop a patina: subtle changes in colour and sheen that come from use.
Honed stone hides marks better than polished; oiled timber can be spot-repaired, whereas lacquered finishes often need full refinishing. Unlacquered brass will darken and soften over time.
The trade-off is maintenance. We always talk clients through how a material will wear before specifying it, so the patina is a choice, not a surprise.