noun
- a zinc silicate mineral that fluoresces bright green under ultraviolet light
Usage: mineralogy
Examples
- The willemite specimens glowed brilliantly under the UV lamp.
- Willemite is an important ore mineral of zinc.
- The Franklin mine in New Jersey is famous for its willemite deposits.
- Collectors prize willemite for its spectacular fluorescent properties.
- The green fluorescence of willemite makes it easy to identify in the field.