"The Temple of Time is the entrance through which you can enter the Sacred Realm from our world. But the entrance is sealed with a stone wall called the Door of Time. And, in order to open the door, it is said that you need to collect three Spiritual Stones." (The Legend Of Zelda: Ocarina of Time, Princess Zelda, 1998)
- Made of glass stone and zinc alloy
- In the design of the spiritual stones from The Legend of Zelda: Ocarina of Time.