The Witcher[]
Pieces of meteorite ore can be used to forge steel swords of a higher quality than the basic weapon, but they cannot be used to forge silver swords. It takes three (3) pieces of ore to forge a new weapon. Using more than one piece of the same color provides special bonuses.
The Witcher 2: Assassins of Kings[]
Pieces of meteorite ore are used to forge The Witcher 2 silver swords.