Verneuil process
[ vur-noi; French ver-nœ-yuh ]
/ vɜrˈnɔɪ; French vɛrˈnœ yə /
noun
a process for making synthetic rubies, sapphires, spinels, etc., by the fusion at high temperatures of powdered compounds.
Also called
flame-fusion process.
Origin of Verneuil process
named after A.V.L.
Verneuil, 19th-century French mineralogist