actinolite

play
noun ac·tin·o·lite \ak-ˈti-nə-ˌlīt\

Definition of actinolite

  1. :  a bright green or grayish-green mineral of the amphibole group that is a silicate of calcium, magnesium, and iron occurring in fibrous, radiate, or columnar forms

1794

First Known Use of actinolite

1794


Learn More about actinolite


Seen and Heard

What made you want to look up actinolite? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a rounded knoll or a ridge of ice

Get Word of the Day daily email!