Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download HD Walls (MiniPack 5) Free.
HD Walls (MiniPack 5) v1.0
MiniPack 5 of 5.
This package contains a unique portion of HD Walls (available here).
6x Aged Limestone (Coarse),
6x Aged Limestone (Fine),
9x American Clay,
42x Elastomeric Swirl,
9x Venetian Plaster.
Individual 1024px X 1024px (lossless PNG): diffuse, normal and specular maps.
2x simple/fast custom DX11 non-IBL shaders are also included to bring out the best of most hard surfaces:
– Diffuse Map + Glossiness + Specular Map with Intensity + Normal Map with Height Control.
– Color (slightly emissive) + Glossiness + Specular Map with Intensity + Normal Map with Height Control.