Writing up metallurgy for a campaign

[tantric]

Is this realistic fantasy? It would be interesting to create a variety of fantastic material with different properties...

As to the Low Metals, Absium, Viridium, Irisium, Xenobium, Mercurium, Azurium and Cinnibrium, each has certain problems that make them impractical. First is rarity - any of them are worth ten times their weight in diamonds. Absium is actually a gas at room temperature - it is discharged from the High Metals as their magic is consumed. Viridium is a green metal, softer even than Aurium and useless for any kind of physical application. Irisium, though beautiful beyond compare, covered with shifting rainbow auras, is harder to work than Adamantium and is found only in one area of the Burning Desert. Azurium is a royal blue metal which is found only in the deepest Waters and begins to corrode immediately on exposure to air. Cinnibrium, though as workable as Argentium, reacts with blood, corroding rapidly. Mercurium is a silvery liquid metal that is extremely poisonous. There are puddles and lakes of Mercurium throughout the Underworld. Xenobium is found only in the Savant maintained sanctuary of HomeAway, and rapidly decays to Absium outside it's borders. There are rumored to be other Low Metals, though they must be rare beyond hope of collection. These Low Metals will alloy with each other, but not with the HighMetals. Their only real use in certain ArtCrafts (and other Magics), and as Jewelry. Nevertheless, as the air in Worldstree is at least 1% Absium at sealevel, using Magic, one can create any of them from thin air in large quantites.

There is another option in the form of Vitredur, which a form of magically shaped diamond. It is incredibly expensive, but lighter and stronger than Adamantium, though just as difficult to work. For the most part, it is used to make swords, shields and armor plates to be attached to suits of Mithril mail. Vitredur, along with Plastics and Ceramics, are the products of ElfTech.