You searched for: “tribothermoluminescence
tribothermoluminescence (s) (noun), tribothermoluminescences (pl)
Shining results that take place when something is exposed to a high temperature that is produced in a material as a result of rubbing: When specific crystals are ground, they generate heat and so there appears to be a detectable tribothermoluminescence which can be measured by special instruments that are sensitive to detections of glittering sparks.