This Polished Dark Slate Flagstones PBR set recreates hand‑cut slate plates arranged in an organic flag pattern with tight mortar seams and a rich, wet sheen for luxe interiors, courtyards, and spa walkways. Deep espresso tones with cool undertones, cleft striations, and subtle filler patches hold up in hero close‑ups, while irregular polygonal pieces break repetition across large areas. The pack provides seamless 4K maps—BaseColor, Normal (OpenGL), Roughness, Height/Displacement, and Ambient Occlusion—fully calibrated for PBR in Blender, Unreal, Unity, 3ds Max, and Maya. Real‑world scale and clean tiling make it drop‑in ready; use Displacement or Parallax to accent grout depth and plate crown, or keep Height light for games. Roughness is tuned for a glossy, sealed stone; lower values push mirrorlike reflections for wet scenes, higher values deliver a satin honed finish. Optimized PNG/TIFF textures balance crisp micro‑detail with efficient memory, and preview renders are included for rapid look‑dev in archviz and cinematic environments.