Ceramic Plate
A Ceramic Plate is a fired Clay Plate. The Kiln lists a recipe for it (3 Clay Plates and 10 Fuel make 3, Building mastery 3), but the recipe has to be unlocked and nothing in the game files unlocks it. Unconfirmed whether you can make one at all.
Nothing else uses it; it could only be studied. Its fired sibling, the Ceramic Urn, is in the same position.
How to obtain
Craft
| Workbench | Ingredients | Yields | Mastery | Duration | Tech points |
|---|---|---|---|---|---|
| Kiln |  Clay Plate ×3  Fuel ×10 | ×3 |  3 | 5 | 1 |
Used for
Study
| Study requires: | Tech points | Duration |
|---|---|---|
| Science ×5 | 10 | 6 ( Researcher −2 ) |
Each item is studied once, on the Study Table. Studying does not use the item up. With the Scientist perk, a 30% chance of a Story.