From Dungeons of Dredmor Wiki
It's white, dry, and doesn't taste very interesting. It's chalk.
Worth 15 zorkmids. B:24 S:9 B:31 S:6 B:36 S:3
It can be crafted with the following recipe:
- In the game XML files, under the recipe for grinding chalk out of Black Pearl, there is a comment line that says, "you're welcome." This may refer to the scarcity of Chalk which is needed to generate Steel Ingots in larger quantities, the latter being an ingredient for lots of crafting recipes. Steel Ingots aren't that hard to come by anymore, since the skill Perception has been patched to grant additional chances for enemies to drop them.