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actinolite

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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


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