Blue Materia
Blue Materia is only effective when used in paired Materia slots.  For most types of Blue Materia, the effect is the same, regardless of whether the Materia is equipped in weapon or armour slots, however, for some types of Materia, where you equip the Materia changes the effect drastically.  This holds for Added Effect Materia and Elemental Materia.  For more information about these two, see below
Price (Gil)





20000
Found At
Cave of the Gi

Beginner's Hall
RedXIII's Initial Materia
In a Treasure Chest in Mt Nibel
Bought from: Fort Condor

North Cave


In Mako Energy Pool in Mt Nibel


North Cave

In a Treasure Chest in Wutai Item Shop, Disc 1 and Disc 2 only

In Whirlwind Maze


Materia Cave

In Wutai, Da-Chao statue cave (use Leviathan Scales on fire)
Effect
Adds paired effect to weapon/armour

Cast paired spell on all enemies or all allies x1, x2, x3, x4, x5



Counter attack with paired Materia when attacked

Adds paired element to weapon's attack, or armour's defense

Absorb HP when using paired Materia

Absorb MP when using paired Materia


Increase power of paired Materia but use more MP

Cast paired spell four times

Steal when using paired Materia
Materia Name
Added Effect

All




Counter


Elemental


HP Absorb

MP Absorb


MP Turbo


Quadra Magic

Steal As Well
Added Effect Materia
     This Materia adds the effects of the paired Materia to the weapon or armour, depending on where you equip it.  It can be used with elemental Materia types, such as Fire or Ice, or with status Materia types, such as Mystify or Transform.  Equipping Added Effect and Fire in linked slots to your weapon adds the Fire element to the attack, so if the enemy is weak against the Fire element, it will receive more damage.  However if the enemy is strong against Fire, less damage will be inflicted.  If the enemy absorbs the Fire element, attacks will heal the enemy.  Equipping Added Effect and Fire in linked slots to your armour makes you stronger against Fire attacks.  If the enemy attacks this party member with a Fire based attack, less damage will be received.
     Equipping Added Effect and Transform in linked slots to your weapon adds the Transform effect to that party member's attacks.  When attacking an enemy, it may be transformed.  Equipping Added Effect and Transform in linked slots to your armour adds the Transform effect to that party member's defense.  That party member will be stronger against these attacks, and will not be transformed so easily.

Elemental Materia
    This Materia adds the effects of the paired Materia to the weapon or armour, depending on where you equip it.  It can be used with elemental Materia types only, and the effects will be the same as those for Added Effect Materia.