In order to create the Fairystone Light, you will need a Holy Stone Fragment. The Duet Solvent Solutions require a Duet Stock Solution.
This synthesis is fairly straightforward. You will obtain most of the required ingredients as part of the main story.
However, if you run out of ingredients, you can go back and collect them again.
Here is the only additional requirement you will have to meet:
- Synthesize an Ingot: The Fairystone Light will also need an Ingot.
You will automatically learn the Fairystone Light recipe simply by returning to the Atelier.
Obtaining the Ingredients
Both the Holy Stone Fragment and the Duet Stock Solution are very easy to obtain.
Duet Stock Solution
The Duet Solvent Solutions will require five units of Duet Stock Solution. You will automatically obtain them at the end of the Spinel Forest quest.
However, if you accidentally use one of the Duet Stock Solution, you can just return to the gathering point.
Fast travel to Astrad Heights – Spinel Forest. Walk a short distance to the east and head down the wooden platform, to the water gathering point.
Interact with the water in order to collect the Duet Stock Solution.
Holy Stone Fragment
You’ve already obtained the Holy Stone Fragment early, as part of the Renowned Alchemist quest.
If you need a refresher, the Holy Stone Fragment can be obtained from these green crystals.
You will find them to the northwest of the Cleria Region Atelier and also at the Mining Highway – Old Mining Site Ruins.
Synthesizing the Duet Solvent Solutions and the Fairystone Light
You’ve already synthesized the Duet Solvent Solution earlier in the story, but as the Iridescent High-Purity Mucus.
Despite the different name, the recipe is the exact same. You will only need two ingredients – a Duet Stock Solution and a Fairystone Fragment.
The recipe will only create one Duet Solvent Solution at a time. This means that you will have to repeat the synthesis five times in order to clear the quest’s requirements. Just make sure you have enough ingredients.
Next, synthesize the Fairystone Light.
Start by adding a Holy Stone Fragment to the Effect 1 loop.
Insert an Ingot in the Effect 2 loop on the right side.
Add a Magical-category ingredient to the Effect 3 loop.
After that, you can synthesize the Fairystone Light recipe.
Off-screen, Ryza will turn the Fairystone Light into Fairystone Light EX.
Fast travel to Sardonica – Artisans’ Union Headquarters. Deliver the Fairystone Light EX to Federica.
Hand in the five Duet Solvent Solutions as well in order to clear the quest.