Ten models of the different shapes of stones
Each models has something between 1000-3000 triangles
PBR texture pack for
PBR Metal Rough Redshift Unity Standart Specular Unreal Engine 4 V-Ray included.
PBR Metal Rough, Unity Standart Specular and Unreal Engine 4 textures comes in 8bit PNG and have 4096x4096 size.
V-Ray and Redshift textures comes in JPG and have 8192x8192 size
https://www.cgtrader.com/3d-model-collections/pbr-stones-set-01
https://www.cgtrader.com/3d-models/exterior/landscape/stone-11-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-09-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-08-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-07-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-06-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-05-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-04-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-03-set-01-pbr
https://www.cgtrader.com/3d-models/exterior/landscape/stone-01-set-01-pbr
https://www.cgtrader.com/3d-models/architectural/other/stone-02-set-01-pbr
https://ua.3dexport.com/3dmodel-stone-02-set-01-pbr-low-poly-252971.htm
https://ua.3dexport.com/3dmodel-stone-01-set-01-pbr-low-poly-253016.htm
https://ua.3dexport.com/3dmodel-stone-03-set-01-pbr-low-poly-253047.htm
https://ua.3dexport.com/3dmodel-stone-04-set-01-pbr-low-poly-253213.htm
https://ua.3dexport.com/3dmodel-stone-05-set-01-pbr-low-poly-253426.htm
https://ua.3dexport.com/3dmodel-stone-06-set-01-pbr-low-poly-253940.htm
https://ua.3dexport.com/3dmodel-stone-07-set-01-pbr-low-poly-254612.htm
https://ua.3dexport.com/3dmodel-stone-08-set-01-pbr-low-poly-255216.htm
https://ua.3dexport.com/3dmodel-stone-09-set-01-pbr-low-poly-255515.htm
https://ua.3dexport.com/3dmodel-stone-11-set-01-pbr-low-poly-255733.htm