Bomb making requires the "Ετοιμασία βόμβας" skill (a silver Νοημοσύνη talent), so Γκέραλτ can not make bombs until he reaches level 15 at least (and then only if it is really a priority as other talents are much more useful). He can, however, use any Βόμβες he finds. Bombs require Συστατικά, just like Φίλτρα, but the bases are different. All bomb-making bases are referred to as "black powder" irrespective of the actual colour of the item.
Top quality bases[]
Buy Sell 
Zerrikanian mix Zerrikanian mix 40 
8
Alchemist's powder Alchemist's powder 70
14
- Only Dragon's Dream requires a top quality base.
High quality bases[]
Buy Sell Saltpeter Saltpeter 10
2
Stammelford's dust Stammelford's dust 20
4
- All Βόμβες except Dragon's Dream require a high quality base.