a variety of amphibole, occurring in greenish bladed crystals or in masses.
Historical Examples

The actinolite slate is dark green, and formed by an almost insensible gradation from the mica slate.
In the Arctic Seas Francis Leopold McClintock

Byssolite, bis′o-līt, n. an olive-green variety of actinolite, in long crystals.
Chambers’s Twentieth Century Dictionary (part 1 of 4: A-D) Various

It is entirely composed of a slaty rock, traversed by numerous veins of actinolite.
A Guide to the Mount’s Bay and the Land’s End John Ayrton Paris

actinolite is a green silicate of lime, magnesia, and iron 322 especially common in certain metamorphic rocks.
Geology William J. Miller

a green mineral of the amphibole group consisting of calcium magnesium iron silicate. Formula: Ca2(Mg,Fe)5Si8O22(OH)2
A greenish variety of amphibole. Actinolite is a monoclinic mineral, and occurs in long, slender, green needlelike crystals, or in fibrous, radiated forms in metamorphic rocks. Chemical formula: Ca2(Mg,Fe)5Si8O22OH2.


Read Also:

  • Actinology

    the science that deals with actinism.

  • Actinomadura

    actinomadura Actinomadura Ac·ti·no·mad·u·ra (āk’tə-nō-māj’ə-rə) n. A genus of aerobic, gram-positive, non-acid-fast fungi forming filaments that fragment into spores.

  • Actinometer

    a device for measuring intensity of radiation, especially that of the sun. Historical Examples It is a good plan to employ an actinometer to judge the correct exposure. Photographic Amusements, Ninth Edition Walter E. Woodbury and Frank R. Fraprie A Johnson’s actinometer is very useful to time the exposure. Photogravure Henry R. Blaney You may […]

  • Actinomere

    noun another name for antimere

Disclaimer: Actinolite definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.