Miranium

Miranium is a material and a source of energy in Xenoblade Chronicles X which is collected by Data Probes.

Plot
FrontierNav's network of data probes mines miranium as part of its duties.

Although the specifics aren't specified, its story-related uses include:
 * Work for rebuilding New LA
 * Construction of battle probes
 * Development of FrontierNav
 * Running buildings, including the Integrated Production Plant
 * Repairing Skells and other heavy machinery
 * Producing s

Uses

 * Delivery requested in certain quests.
 * Support of Arms Manufacturers.
 * Upgrading battle traits.
 * Creating Augments.
 * Creating new s,, and Skells.
 * Adding Augment slots to gear at L's Shop.
 * Refueling Skells (5000 Miranium for 3000 Fuel).

Storage
The initial capacity is 6000 Miranium. This value is increased using Storage Probes, which increase miranium capacity by 3000 units each.

The biggest projects, like the Ares 90, require 100000 Miranium to be provided in one sitting, so probe chains, Booster Probes, and Duplicator Probes are generally necessary to reach that value.