Free Rock procedural material - Gumroad

I made another rock material study today, this time I wanna share it free with you if you are learning substance or maybe if you want to give me some feedback, both are welcome! Here I let you the link to gumroad: https://gum.co/WiplU
Also I´m proud to share the 80 Level article wich talks about the material! https://80.lv/articles/free-rock-material/
Hope one day I could make a nice break down of everything, enjoy!