The Shifter located five mountains, arranged in a star formation in the sea, rather large and close together.
These five mountains will be mine for now. Nerjin, can your creatures survive the radiation?
Pulling one of the many bones from Its' body, the Shifter set to work. It took the metal to the Sun, and there It worked. Infusing it with both Its' power and the fiery power of the star, the metal began glowing. The silvery color of the metal shifted to a bright white.
It then pulled a small amount of rock from the moon once more, and infused it with the metal, creating a new ore. Placing it at the heart of the radioactive mountains It created, the ore would dampen the effects of the plutonium, acting as an inhibitor for the mountain. While it certainly didn't eliminate the radiation by any stretch, it reduced it by a noticeable degree. The metal, when mortals would test its' strength, was considerably stronger than steel, holding an edge incredibly well, one nearly as sharp as an obsidian blade, but had a density near that of tungsten. It titled the metal Celestial Iron and the ore Celestial Ore. Of course, in order to use it, mortals must first reach the ore, deep within the radioactive mountains.
Create Celestial Ore and place it within every radioactive mountain. A reasonable amount can be found. The ore and metal act as nuclear inhibitors, reducing the radioactivity of the mountains somewhat. When refined, Celestial Iron is around three times stronger than steel, and holds an edge comparable to an obsidian blade, but for far longer, and has a density similar to tunsgten. As the ore is at the heart of highly radioactive mountains, it will take some time for life to reach it.
It left the five mountains unnamed, for now.