The different damage types are indicated by an icon on the item’S base damage stats.
Blast
Explosive damage and area of effect damage
Physical damage types
Impact – 
induced by weapons, melee attacks or single target skills
armour damage shield damage
Acid – 
reduces the target’s resistance
armour damage shield damage
Elemental damage types
Electrical – 
chains near targets armour damage shield damage
Ice – 
freezes targets armour damage shield damage
Fire – 
set targets on fire and cause damage over time armour damage shield damage