One of the most relaxing and scenic activities in Throne and Liberty is to hop on the Gigantrite and follow its route through Solisium. However, if you've ever taken a ride on the Skyward Whale Express, you may have noticed certain junctions that require Vitalstone.
Throne & Liberty: "Gigantrite Guide" How to Ride It, Get Vital Stones, and More (Farm Guide)
In true Throne and Liberty style, it’s pretty hard to get any in-game info on what Vitalstone even is, let alone where to get it and what it does. If you’re wondering what those strange nodes are after hopping on the Gigantrite to mine Marind or completing the Little Friend in the Sky quest, here’s everything you need to know about what Vitalstone is, where to get it, and how to use it in Throne and Liberty.
In lore terms, Vitalstones are crystallized bits of the Gigantrite's blood that contain a vast amount of mana. In practical terms, they are consumables that can only be obtained by mining the Divine Beast Fragments that the Gigantrite sheds from itself from time to time.
Yes, the shiny blue "whale poop" you may have seen dropping from her actually drops something on the ground. She'll shake off fragments multiple times during a single trip – unfortunately, it's hard to predict when and where the Gigantrite will shake off fragments. While you can choose to chase the Gigantrite onto land for a better view of when and where the fragment will drop, you'll likely be overtaken by her fairly quickly. The best way to get Vitalstones is to jump on the Gigantrite as quickly as possible, then wait on one of her fins while looking down to see when she'll shake off fragments.