Final Fantasy VII - Materia Caves
There are four materia caves located at different places around the planet. These contain powerful materia that will benefit you in the strongest battles in the game. It is highly recommended that you get all of this materia before fighting the Weapon creatures.
Since black and gold chocobos have the abilities of blue and green, you can use those chocobos instead to reach those materia caves. Likewise, a gold chocobo can access the cave which the black chocobo gets access to.
The table below list the materia that can be gained and how to get there.
|1||South-east of Wutai.||Green||Mime|
|2||North-east of Mideel.||Blue||Quadra Magic|
|3||North of North Corel.||Black||HP <-> MP|
|4||Island, north-east corner of the world map.||Gold||Knights of the Round|