lustre
FORMA EN QUE LA LUZ INTERACTÚA CON LA SUPERFICIE DE UN CRISTAL, MINERAL O ROCA
Brillo (geología); Brillo (geologia)
= lustre [luster, -USA], shine.
Ex: The library was greatly expanded in the late 1650s to accommodate the needs of the scholars and men of letters attached to Fouquet and to add lustre to his political career.
Ex: This shows that antagonistic forces hide behind a "shine" of unity & harmony.