Neodymium Glass

Neodymium glass is known for its colour-changing properties when exposed to different types of light.

When the glass is exposed to incandescent (yellow) light or sunlight, it will appear in varying shades of pinkish-purple. When it is placed under fluorescent or artificial (white) light, these cool tones will give the glass a pale blue or green appearance. This ability to change between two colours is called ‘dichroic’.

The differences in the shades will depend on the mixture of the chemicals within the glass, as they will dictate how UV-reactive the piece is.

Neodymium Glass is often referred to as ‘Alexandrite’, which was a term used by Moser when their Technical Director, Leo Moser, developed his colour-changing glass in the 1920s. The original recipe for this mixture is a closely guarded secret and is still in use by Moser almost 100 years later.