Crafting using Impure White Chalk, Crushed End Stone, Any Obsidian Dust and Any Obsidian Dust, in any arrangement. Produces Impure Purple Chalk.
Crafting ⇆ any arrangement 
Impure Purple Chalk guaranteedtag
Obsidian Dust
forge:dusts/obsidian
Items (4)
Recipes referencing this tag (2)
Crafting ⇆ any arrangement Impure Purple Chalk guaranteedSequenced Assembly: Start with Unprocessed Obsidian Sheet, carried through each pass. process 1× through: Filling; then Pressing; then Pressing. Most likely produces Sturdy Sheet, with other outcomes possible.
Sequenced Assembly Carried through each pass:
The sequence, processed 1×:
- Filling
- Pressing
- Pressing
Sturdy Sheet guaranteed