Dictionary

actinolite

noun ac·tin·o·lite \ak-ˈti-nə-ˌlīt\

Definition of ACTINOLITE

:  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

First Known Use of ACTINOLITE

1794

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