Blackstream Port is named after the Blackstream Stone, a geological mineral from Terra. Its appearance resembles black mica, composed of silicate mixtures of Patterned Iron and Light Radiant Aluminum, among other Origin Quality metals. Due to its insulating and high-temperature resistant properties, and its resistance to Origin Quality infiltration, it has a wide range of applications and is an important coating material for many alchemical devices.
In addition, Blackstream Stone is accompanied by Panshard Sand, the most important raw material for alchemical explosives, and even other more precious Sublimated Metals.