Vesuvian volcanic soil

During a trip to Naples, I went seeing the Vesuvius. There I saw this pretty cool volcanic ground. You could clearly see the signs of a violent eruption and the flows of the ancient lava, but at the same time it was so peaceful now, full of grass and lichens. The contrast between this violent past and peaceful present really impressed me, and I wanted to try and recapture that look. 100% substance designer, textures in 8k.