The Ether Crystal Deposit is a location in Xenoblade Chronicles. It is clifftop area located in the Eryth Sea, connected by teleporter to Hovering Reef 6, which it is south-east of. It can be accessed by skip-travelling to Hovering Reef 4, then teleporting to Hovering Reef 5, then to Hovering Reef 6, and finally to the Ether Crystal Deposit.
As its name implies, Ether Crystals can be mined here. The following Rank III Electric crystals can be mined: