Timeshift Stone

Timeshift Stones are large purple stones found in the Lanayru Province. When struck, they turn blue and produce a temporal disruption field, rendering the surrounding area in a past state. These stones are mined by Ancient Robots and used as a power source for both themselves and their equipment.

Mining

With the Thunder Dragon's permission, Timeshift Stones are gathered from many locations in Lanayru Province, starting with Lanayru Gorge. Specialized Ancient Robots dig the ore out of the ground using large claws.

Once gathered from the ground, Timeshift Stones are transported to Lanayru Mining Facility for processing. Here they are purified into usable power sources before being shipped to where they are needed.

Timeshift Orb

Some Timeshift Stones are compressed into portable truncated octahedrons called Timeshift Orbs. These appear to be in a permanently activated state and must be moved in order to affect the surrounding area.

The Past

The disruption field created by Timeshift Stones returns the surrounding area to the state in which it existed in the past, in addition to recalling objects and creatures native to the past. Robots and machinery, including Armos, Beamos, and Sentrobes used for security measures, are returned to a powered state. Dead organisms such as Technoblins and the Thunder Dragon himself are also brought to life, as are plants, including Ancient Flowers and Deku Babas.

Everything down to the terrain is affected by the disruption field, reverting the sand into its original grassy state - or water in the case of the Lanayru Sand Sea. Various gates and doors can be opened or closed depending on which time state they are in.

References

1. ↑ "I am able to confirm that a time shift has occurred within this space. Any impact to the blue stones creates a sustained temporal disruption field in the surrounding area. Readings show that this area is in a past time state." — Fi, Skyward Sword.
2. ↑ "We got permission from our master, the Thunder Dragon, to dig for Timeshift Stones, vweep. But Master Thunder Dragon is very ill right now, brrzrrt. I'm worried about him, vrrm. At this rate, our master may cease functioning, vweep..." — Ancient Robot, Skyward Sword.
3. ↑ "This is Lanayru Gorge. Of all the Timeshift Stone mining areas here, this was the very first to be mined." — Fi, Skyward Sword.
4. ↑ "Where did you come from, dzzzzt? We're here collecting Timeshift Stones and transporting them to Lanayru Mining Facility. Stay away from the blue stones, zrrpt. They're too dangerous for humans!" — Ancient Robot, Skyward Sword.
5. ↑ "This is Lanayru Mining Facility. Readings indicate it is populated with electrically charged monsters. Also, I detect the presence of ancient security measures, though they now appear to be in disrepair." — Fi, Skyward Sword.