Vaagides

Vaagides is a term used in speculative fiction and worldbuilding to denote a class of fictional crystalline minerals noted for their distinctive resonant properties. It has no basis in real-world geology, and the term is not recognized by scientific mineralogy. In narrative contexts, vaagides are described as rare and valuable materials that interact with vibrational energy in unusual ways.

In most depictions, vaagides appear as translucent to opaque crystals with a color range that can include pale blue, gray, or iridescent hues. The crystals are typically described as brittle but capable of transmitting or amplifying mechanical or acoustic vibrations. When stimulated, vaagides may emit visible light, hum, or color shifts, and their internal lattice structure is said to respond to specific frequencies.

Geologically, vaagides are commonly portrayed as forming in extreme environments—deep volcanic rock, high-temperature glassy matrices, or as inclusions in meteorites. They are frequently depicted as scarce, empowering their role as coveted commodities in trade, technology, or ritual contexts within fictional worlds.

Uses and significance in fiction often center on energy or information storage, resonance-based devices, or ceremonial roles. Characters may seek vaagides for power generation, memory encoding, or as keys to unlocking ancient technologies. The material’s properties are typically central to worldbuilding puzzles, plot devices, or economy within a story.

See also: fictional minerals, worldbuilding resources, speculative geology.