Komistoite is a porous mineral formed via bedrock expulsion. They are composed primarily of iron, and secondarily of aluminum. It has an average metal content of 69%.
Komistoite is a combination of iron and aluminum, erupted during the volcanic activity that once ruled the planet. Pools that form within the mineral over time are known to be used by the Heatwings to lay their eggs in, where they are protected from being drank by other species that cannot withstand the high metal content, which Heatwing larvae are adapted for.
It is dark gray in color, while the liquid slurry within is a vibrant green mixture, with an oily sheen on its surface.