Actinolite
a variety of amphibole, occurring in greenish bladed crystals or in m-sses.
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
noun
a green mineral of the amphibole group consisting of calcium magnesium iron silicate. formula: ca2(mg,fe)5si8o22(oh)2
actinolite
(āk-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.
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 amus-m-nts, 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
- Actinomorphic
biology. having radial symmetry. botany. (of certain flowers, as the b-ttercup) divisible vertically into similar halves by each of a number of planes p-ssing through the axis. adjective (botany) (esp of a flower) having radial symmetry, as b-ttercups see also zygomorphic actinomorphic (āk’tə-nō-môr’fĭk) relating to a flower that can be divided into equal halves along […]