Found 190 Rock CC0 textures in library

Aerial Grass Rock
Aerial Ground Rock
Aerial Rocks 01
Aerial Rocks 02
Aerial Rocks 04
Brick Wall 04
Broken Wall
Castle Wall Slates
Castle Wall Variation
Cave Rock 1
Cave Rock 2
Clean Pebbles
Cliff 1
Coast Land Rocks 01
Coast Sand 03
Coast Sand 05
Coast Sand Rocks 02
Concrete 018
Concrete 27
Concrete Rock Path
Coral Fort Wall 01
Coral Fort Wall 02
Coral Fort Wall 03
Coral Gravel
Coral Ground 02
Cracked Red Ground
Defense Wall
Defense Wall 02
Dry Ground Rocks
Forest 3
Forest Ground 04
Forest Ground 2
Granular Concrete
Grassy Cobblestone
Gravel 011
Gravel 012
Gravel 013
Gravel 014
Gravel 015
Gravel 016
Gravel 017
Gravel 018
Gravel 019
Gravel 020
Gravel 021
Gravel 033
Ground 014
Ground 022
Ground 034
Ground 035
Ground 14
Ground 2
Ground Texture 1
Ground Texture 7
Japanese Stone Wall
Medieval Blocks 02
Medieval Blocks 05
Medieval Blocks 06
Medieval Wall 02
Mossy Rock