Meaning of Vitreous Lustre
Vitreous from Latin 'Vitrum'
Vitreous is the most common type of lustre seen in rocks, minerals and particularly gemstones.
Lustre is a term used to describe the way light interacts with the surface of a stone.
The word 'vitrous' comes from the Latin 'vitrum' meaning 'glass'. Stones with a vitreous lustre reflect light in a similar way to glass.
The word implies the stone's appearance or physical properties are 'glass-like'.
Article Picture
Our photo is a herkimer diamond from Herkimer County New York. The picture is clickable and redirects to the original photo. Courtesy of Stan Celestian.