noun
- A green or grayish-green mineral of the amphibole group, typically found in metamorphic rocks and used in some industrial applications.
Usage: mineralogy; geology
Examples
- Actinolite is commonly found in schist and other metamorphic rocks.
- The geologist identified actinolite crystals in the thin section under the microscope.
- Actinolite belongs to the amphibole mineral family.
- Some varieties of jade contain actinolite as a component mineral.
- The green color of actinolite makes it useful in certain decorative applications.