Earth Crystal

The Earth Crystal is one of the four elemental crystals that appear throughout the Final Fantasy series, starting with the first game, Final Fantasy. As its title suggests, the Earth Crystal is associated with the power of earth. The Earth Crystal is yellow in nearly all of its appearances.

In the Nintendo Entertainment System and MSX2 versions of Final Fantasy, the four crystals are orbs, and the Earth Crystal is known as the Earth Orb. It first appeared as the Earth Crystal in Final Fantasy III.

Final Fantasy
In Final Fantasy, the Earth Crystal is located on floor B5 of the Cavern of Earth. It is the first crystal that must be restored by the Warriors of Light. The Earth Crystal preserves the vitality of the land. Many years before the game's events, the Earth Crystal's power was drained by Lich, causing the surrounding lands to decay. After the Warriors of Light defeat Lich, the Earth Crystal's power is restored.

Final Fantasy Mystic Quest
In Final Fantasy Mystic Quest, the Crystal of Earth is the first crystal that Benjamin has to restore. The Flamerus Rex is draining the crystal's power, causing trees and plants to decay in Foresta and nearby areas. Once Benjamin and Tristam defeat the Flamerus Rex, the Earth Crystal is restored, and plants grow back in Foresta and its nearby areas.

Final Fantasy Fables: Chocobo Tales
In Final Fantasy Fables: Chocobo Tales, its name is parsed crystal of earth, which rests within the forest area, right ahead of the second volume of "Unicorn and the Town Musicians". Unlike most of its appearances, the crystal of earth is green, whereas the crystal of light was made the yellow crystal. The crystal of earth is the second crystal that Chocobo must restore. The Unicorn is the guardian of the crystal of earth. When Chocobo unlocks the book's first epilogue, the crystal of earth's light is restored. After the Unicorn briefly introduces itself to Chocobo, Shirma, and Croma, a dark mist surrounds the crystal of earth, draining its power, and Bebuzzu appears. He swallows the crystal and takes on a new form. Chocobo must must defeat Bebuzzu in a pop-up duel to recover the crystal of earth, although its power is still missing because it was inhaled by Bebuzzu.

The crystal of earth and the other three crystals are featured in the last book, "Legend of the Crystals". The crystal of earth is simply named the green crystal in the book's opening. According to the opening, the green crystal created planets and stars from nothing, bringing the land into existence.