From Witcher Wiki
Phosphorus is a highly flammable alchemical substance.
Contains:
Vermilion
| Buy
| Sell
|
60
| 30
|
[edit] Source
- Kalkstein buys this mineral
- can be purchased from Abigail in Act I. It is the only source of vermilion in that act. She initially has two portions, and then one portion daily thereafter.