Philosopher Stone
The Philosopher Stone turns iron into gold. At the Formulation Bench it changes an Iron Ore into a Golden nugget (Anatomy mastery 6) or an Iron Ingot into a Golden ingot (Anatomy mastery 8), and the stone is used up. Both recipes come with Alchemy, Advanced (200 red, 100 blue).
The stone itself is an alchemy product: a mix totalling 3 red, 3 green and 3 blue runes, which takes at least 3 ingredients and so the three-slot Laboratory II. Alchemy, Advanced also reveals it as a product. The town Alchemist sells 10 at tier III.
How to obtain
Mix
Runes 333 ·Crafted at Laboratory I
| Ingredient |
|---|
 Beeswax +  Brain ★★★ +  Copper Nugget |
| Beeswax + Brain ★★★ + Copper Nugget |
Beeswax +  Cheese +  Heart ★★★ |
432 ingredient combinations reach these runes — see how mixing works →
Traders
| Name | Tier | Stock |
|---|---|---|
| Alchemist · town building — build it first | Tier III | 10 |
Used for
Ingredient for
| Workbench | Ingredients | Outputs | Mastery | Duration | Tech points |
|---|---|---|---|---|---|
| Formulation Bench |  Iron Ingot ×1  Philosopher Stone ×1 |  Golden ingot ×1 |  8 | 12 | 13 |
| Formulation Bench |  Iron Ore ×1 Philosopher Stone ×1 | 6 | 8 | 12 |
Study
| Study requires: | Tech points | Duration |
|---|---|---|
| Science ×20 | 503025 | 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.
Notes
- Ingot to ingot is the better trade. One stone makes a whole Golden ingot from an Iron Ingot, but only a nugget from ore, and a Golden ingot takes 3 nuggets at the furnace.
- Studying it costs 20 Science and gives 50 red, 30 green and 25 blue.