Materia (Final Fantasy VII)

Materia are the way magic and summons are used in Final Fantasy VII. They are equiped on Weapons or Armor. Materia is crystalised Mako

Types
There are 4 Types of Materia, each with a different colour.

Red - Summon Materia Green - Magic Materia Yellow - Command Materia Blue - Support Materia Purple - Independant Materia

Also there is Master Materia. This special materia is only available for Command, Magic and Summon Materia. The Master Materia contains all of the materia for the colour.

Other Materia

 * There is also Black Materia in the game, however this materia is unable to be used by the player.
 * Holy is also in the game, but again is unable to be used. Aeris has this materia hidden in her hair and it is then lost in the Ancient City.