I created this rock texture in Substance Designer 2018.1.2.
I started with a Polygon 2 node in the shape of a pentagon and through a series of warps, blends, and blurs, I got the first rock shape. I repeated this two other times with different values to make two additional shapes. Next, I used 4 different Tile Sampler nodes to tile the rock and create different layers. These layers were then blended together to make the basic shape. I then blended in some small details and effects, added the color, and created the main texture maps.
The texture maps for this texture include: