Obsidian - Material Breakdown - Júlia Sauleda

https://gamesartist.co.uk/obsidian/
Texture artist Júlia Sauleda provides a walkthrough process of her Obsidian Material using Substance Designer. In this article, she covers references, height maps, utilizing Flood Fill nodes, adding micro-detail with noises, normal map artifacts, defining base color, roughness and metallic properties, rendering and lighting.
https://www.artstation.com/anyngai
https://www.artstation.com/artwork/ZavJZN