Moss, lichens, and dirt can likely be processed to become edible without too much difficulty, often with simple boiling or possibly time spent in a lye solution.
The stones themselves will at least need to be made smaller to be digestible.
Moss, lichens, and dirt can likely be processed to become edible without too much difficulty, often with simple boiling or possibly time spent in a lye solution.
The stones themselves will at least need to be made smaller to be digestible.