Phrygian Gold Ore is an FFXIV crafting material gathered by the Miner class, a Disciple of the Land. Ore rich in Phrygian gold. It’s a common ingredient used to make other crafting resources for Blacksmith, Armorer, and Goldsmith.
You can find the material within Level 85 Rocky Outcrop east of Camp Broken Glass (X: 21.2 Y: 29.2), in The Eblan Rime region of Garlemald. Before you can acquire the resource from the node, you must first unlock the Miner class. Then you need to be at least Level 81 before you can tap these nodes and acquire this material.
Inside the node, you’ll also find another material:
