actinolite
a variety of amphibole, occurring in greenish bladed crystals or in masses.
Origin of actinolite
1Other words from actinolite
- ac·tin·o·lit·ic [ak-tin-l-it-ik, ak-tuh-nl-], /ækˌtɪn lˈɪt ɪk, ˌæk tə nl-/, adjective
Words Nearby actinolite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use actinolite in a sentence
actinolite is a green silicate of lime, magnesia, and iron 322 especially common in certain metamorphic rocks.
Geology | William J. MillerIt 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 ParisThe actinolite slate is dark green, and formed by an almost insensible gradation from the mica slate.
In the Arctic Seas | Francis Leopold McClintockByssolite, bis′o-līt, n. an olive-green variety of actinolite, in long crystals.
British Dictionary definitions for actinolite
/ (ækˈtɪnəˌlaɪt) /
a green mineral of the amphibole group consisting of calcium magnesium iron silicate. Formula: Ca 2 (Mg,Fe) 5 Si 8 O 22 (OH) 2
Origin of actinolite
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for actinolite
[ ăk-tĭn′ə-līt′ ]
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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