Mythra

Mythra is a grade 7 premium scavenged metal crafting material.

Source
Mythra can be gathered from a ?? node, which requires ?? skill in scavenging. It is most commonly found on Makeb and Oricon.

The following materials can also be found in ?? nodes:

They can also be obtained from grade 7 scavenging missions. Additionally, there is a chance to obtain Mythra from reverse engineering the appropriate level and type of gear.

Uses
Mythra is used in several crafting schematics: