Dust Worlds
Loose dust, little or no water, and usually some heat. Home to the fiercest fuel there is.
Deserts, rust barrens, ash plains, spire forests and dust moons. Dust worlds are where glass comes from, since their loose surface is Sand.
Signature ore
An ore ending in -pyre, -char or -cinder, black with soot, with Combustion of 88–100. Smelted down to Coal, it packs an Ignition Charge.