There are a number of Resources to be found in Eiyuden Chronicle: Rising. Some of these Resources can be obtained from the environment. This page will detail the location of the High-Purity Ore resource.
High-Purity Ore is a rare material required for various quests and upgrades. It can be obtained as a rare drop from mining spots in the Quarry–specifically the gray/black ones along the main path.
You don’t have to venture far to obtain High-Purity Ore Ore: the area just past the Mouth has 7 nodes where you can obtain this Ore. After looting the ore, you can return to the Mouth to refresh the nodes. Otherwise, keep going east, along the lower path, towards the next signpost for 6 more nodes.
Exchange via Trading Post
If you have excess Huge Ore, you can trade three of them (plus 300 baqua) for one High-Purity Ore.