Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Grass Lava Stone Bones Texture Pack 04 Hand Painted Free.
Grass Lava Stone Bones Texture Pack 04 Hand Painted
All textures are handpainted and perfectly tileable at 512×512 pixels in .png format. Pack contains the following five textures.
– Skull and Bone
– Stone Floor
– Metal Trim (13 trims in total)