Load into the Ruins of Wyveria and set a marker on one of the Mining Outcrops — there’s one just out of the base camp and to the left. Your mount should automatically take you to the ore.

Gracium Ore locations can be found in the Iceshard Cliffs in High Rank. More specifically, load into the Iceshard Cliffs and set a marker on one of the Mining Outcrops — there are three in Area ...