Rock material (Basalt).
- The archive contains the file max 2012, 2015, 2018(Vray) 2013, 2015, 2018(Corona) obj, fbx with 2 customized materials.
- Seamless textures.
- Texture size 4096 x 4096
- Base color(Diffuse), Roughness, Normal, Displacement, Ambient Occlusion.
Important! The scene in the preview is different from the scene in the archive. In the scenes (in the archive) there are 2 spheres with customized materials. The spheres have a VrayDisplacementMod or CoronaDisplacementMod modifier applied (depending on the engine you are using). You can adjust the Displacement value yourself by changing the Amount value (in the VrayDisplacementMod or CoronaDisplacementMod modifiers).
Video presentation of textures made in Marmoset: https://youtu.be/F3DsYG5B60g 
Those who work in a V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - whichever is preferable for you.” If the CORONA version is higher than 1.4: “For Corona render, it is recommended to install the version no lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR.