mílth
Mílth is a term used in speculative fiction to denote a rare mineral or crystalline substance with distinctive properties. In many settings it refers to a solid material mined from specific geological formations, while in others it functions as a conceptual energy source or magical medium.
Physically, milth is described as a translucent, often iridescent crystal that emits light and stores energy.
Geologically, milth is placed in vein deposits within volcanically active regions or near tectonic boundaries. Mining
In fiction, milth serves multiple roles: it powers devices and weapons, fuels runic or alchemical processes,
Etymology and usage vary by world. The name milth is often linked to roots meaning light or