modify only the stone walls the stones should be smooth naturally rounded river stones with soft organic forms and gently weathered surfaces they should have a consistent warm beige to light sand color with very subtle tonal variation and no strong contrast between individual stones the overall appearance should feel refined clean and cohesive with stones of similar size and softly rounded edges mortar joints should be thin recessed and discreet avoid rough masonry mediterranean rubble stone fieldstone quarry stone split face stone stacked stone veneer jagged edges porous textures fractured surfaces oversized stones excessive relief or strong color variation do not apply these characteristics to any other material or surface only modify the stone walls
