It is well known that the purple hue that is characteristic of the amethyst quartz (SiO2) will fade if the crystal is exposed to light for a prolonged period of time. What is the underlying mechanism of this change?
2 of 4
Added <sub> tag to text.
Why does the colour of amethyst fade if exposed to too much light?
Kenshin
- 7.6k
- 12
- 43
- 82