Eog

Eog is a naturally occuring steel. Often called true steel, but true iron would be more appropriate. It is a black iron-like metal, mined from veins deep in the earth. Elves and dwarves mine the material, just as the orcs do. The material can only be worked with using spells that magically make it malleable and workable. Alchemists know the secrets of these spells, and it takes a master alchemist to work the metal. Eog is hard to find, and it takes a prospector with a good eye to find it. Eog is crafted into armor and weapons.
These weapons and armor are typically more durable, and the inherent magic makes weapons more keen and armor more defensive. As a result, eog is highly prized by man, elf, dwarf, and orc.

Rolemaster Game Statistics:
Eog is alloyed in a variety of ways through the various Weapon VII, Armor VII, or greater spells that are used to enchant it. It has a Strength Bonus equal to 10x the number of the Weapon spell used in creating it (So a Weapon X would give it a Strength Bonus of +100).
Pathfinder Game Statistics:
Eog is comparable to Adamantine in several ways.  Like Adamantine it can be mined. Except that Eog is a black, or white, metal. And adamantine is a substance comparable to diamonds. Treat Eog to have the same statistics as Adamantine. Eog grants damage reduction comparable to 3/—.

Type

Metal