ulexite

Etymology
Named after the German chemist Georg Ludwig Ulex (1811-1883).

Noun

 * 1)  A white mineral with triclinic crystals, NaCaB5O9·8H2O, noted for its fibers which transmit light by internal reflection, such that a piece with flat faces perpendicular to the fibers' orientation displays an image of whatever is adjacent to its other side.

Translations

 * Finnish: uleksiitti
 * French: ulexite
 * German: Ulexit
 * Italian: ulexite
 * Japanese: 曹灰硼石
 * Portuguese: ulexita
 * Spanish: ulexita