Tionsand

Tionsand is a term used in speculative fiction to denote a fictional granular material with unique luminescent and energy-storing properties. The word is a coinage combining the common English suffix -tion with "sand," intended to suggest a sand-like material with unusual capabilities.

According to fictional descriptions, Tionsand consists of silica-based grains 0.1–0.5 mm in diameter, with translucent to iridescent inclusions. The grains are highly uniform, bound by a glassy matrix that forms under rapid cooling. When subjected to electric or magnetic stimuli, Tionsand grains exhibit a soft luminescence, often described as a blue-violet glow. Thermal stability is high, allowing the material to withstand significant temperature fluctuations.

In the fictional universe, Tionsand forms in geologically active deserts or on regolith-covered planets, where mineral-rich vapors crystallize rapidly as surface layers are heated by geothermal forces. It is typically mined in shallow sands or extracted from dune fields or alluvial deposits.

Uses described include construction materials, energy storage or emission-based devices, and decorative or ceremonial purposes. Tionsand is often regulated by governments or guilds due to its value and potential hazards related to luminescence and dust inhalation in the story's context. Trade routes and mining rights are common plot elements.

Real-world science has no material officially named Tionsand; the term appears in fictional or speculative works as a coinage.