Valemis
Valemis is a fictional mineral used in science-fiction worldbuilding and related media. In most portrayals, it appears as a translucent, iridescent crystal that shifts color from blue to violet as the viewing angle changes. The mineral is associated with the Valemis Formation of the planet Valerion, though exact geography varies by author. It is typically described as forming in high-temperature hydrothermal veins within ultramafic rocks and occurs in limited, stratified deposits.
Valemis is noted for two standout properties: strong piezoelectric response and photoluminescence. The crystal lattice is
In worldbuilding use, valemis is also employed as a symbol of technological progress and resource scarcity.