This is about the island Brass, if you are looking for the type of armor, well, I can't help you.
The Isle of Brass is called so for it's natural color, from it's red sands to it's dry, dead vegetation.
The Isle of Brass was an Island first found by the Slave Galley Bloodleech. The searat slavers siezed the Isle's inhabitants, the Sand Lizards, and set them up as Galley slaves, for the reptiles' strength, slaughtering all the rest of the Lizards who were Adults and older, as their own safety precautions. The Isle was then henceforth abandoned, until another visitor comes knocking.
No stories or RPGs, as of yet