Supernatural Metals.

although bronze, iron, steel, silver, and gold are all fine and dandy on their own, there are times where substances with more power are required, for which purposes these three, known as the perfect metals are commonly put to the test with each having different roles.

Orichalcum
Celestial bronze, imperial gold, sky copper, and a million names besides, Orichalcum is a metal found in veins alongside leylines and other areas of greater arcane power, this metal which resembles bronze but with a reddish hue is commonly used to form runes and other things that require magic to be channeled due to its high ductility and ability to transmit arcane energy with ease.

famous uses:

 * the twin khopeshes of the Viziors (currently used by Aye-Eya of the twin-fangs sultanate)
 * commonly used for the covers of a wizard's spellbook to contain energy for a locking spell.
 * the crown of the cidel empire is made of a mixture of Orichalcum and Mithral.

Mithral
Mithral, or sky silver, or true metal, in short, Mithril has many names much like her sister metal Orcichalcum but the differ in that Mithral is found in the remains of meteroites that impacted Axelo in the past. and when found by smiths looking to expand their work, the smiths found that they were able to turn the metal into armour that although light and flexible, could deflect all but the greatest of weapons, however the rariety of the metal means that only lords and kings can afford armour made of this metal, although the wyvern riders of Ancar have found a way to make mithral swords coloured in the same hue as their mount's scales.

famous uses:

 * can be used against Were creatures, along with mortal silver but mithril is more effective.
 * as mentioned the blades of the wyvern riders of Ancar are made of some strange type of Mithril alloy.

Adamantine.
unlike her sisters, Adamantine is forged only by the dwarves, who use the heavy blueish-greenish-grey metal called Adamantine for many different roles however they use the other metals as well for many things as even for their masters Adamantine is hard to shape into any form but thick slabs that can deter all but the strongest of blows, making it ideal for gates and heavy plate armour, however a sect of master smiths have found a way to turn the metal into heavy weapons such as clubs, dhao, or ceremonial battle axes where the weight of Adamantine is not just a weakness but a strength when compared to its near indestructibility.

Famous uses

 * the gates of Tholgeshud are forged from Adamantine but as they rarely open there are little problems with that.
 * the goliath king Kavakin Dayhunter Vuma-Thamune wields a Dao made from Adamantine.
 * Dwarven warhammers frequently have Adamantine cores for weight and strength.