AssetsFold Package contain set of 15 prefabs of rock formations. You can use them separately or combine then into bigger formations.
Package is Unity 5 ready, that's mean all objects are made in PBR workflow.
Each prefab is using material in Specular workflow. All textures are 2048x2048.
No more than 2000 tris per object.
Package will be updated with mobile friendly objects, as well with more variations of this objects (for example - moss covered version).