Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A lustrous yellow, green, or black mineral, Ca2(Al, Fe)3(SiO4)3OH, commonly found in metamorphic rock.
Century Dictionary and Cyclopedia
- n. A common mineral, occurring in prismatic crystals belonging to the monoclinic system, also massive, generally of a pistachio-green color and of a vitreous luster. It is a silicate of aluminium, iron, and calcium. The epidote group of minerals includes, besides epidote proper, the manganese epidote piedmoantite, the cerium epidote allanite, and the calcium epidote zoisite. Epidote is also called
arendalite and pistacite.
Wiktionary
- n. Any of a class of mixed calcium iron aluminium sorosilicates found in metamorphic rocks
GNU Webster's 1913
- n. (Min.) A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese.
Etymologies
- French épidote, from Greek epididonai, to give in addition, increase (from the greater length of its crystals compared with those of related minerals) : epi-, epi- + didonai, to give. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“The feldspar is decomposed with the resulting formation of epidote, which is quite prominent.”
“Here is nobly born quartz living with a green mineral, called epidote; and they are immense friends.”
“Kata Tjuta, covering about 3,500 ha, comprises 36 steep-sided rock domes of gently dipping Mount Currie conglomerate consisting of phenocrysts of fine grained acid and basic rocks, granite and gneiss in an epidote rich matrix.”
“Basically, a process called metamorphism caused the basalts in Shenandoah to recrystallize with new minerals, such as chlorite, epidote, and albite, which help give the rocks their greenish hue.”
“Plagioclase remains a stable phase within the rock, though the mafic minerals have been altered primarily to chlorite + epidote.”
“The rarer stones, sphene and epidote, likewise exhibit this property markedly.”
A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public
“The summit of Crystal Head is of flat tabular form; and the sides, which are both steep and rugged, are covered with stunted trees and high grass, now quite dry: the geology of this part is principally of siliceous sandstone; and on the beach we found large detached water-worn masses of the same rock, incrusted with quartz and epidote in a crystallized state.”
“The wall rocks have undergone a "propylitic" alteration, with development of chlorite, epidote, and probably sericite, much as at Butte.”
“A fine grained compact gray rock, of aggregate structure, consisting chiefly of quartz, plagioclase and biotite, and the alteration products epidote and sericite.”
“Plagioclase, microcline and quartz are the predominating minerals, while biotite, titanite, epidote, apatite, zircon and garnet are present in smaller quantities.”
Lists
These user-created lists contain the word ‘epidote’.
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Minerals and Mineralogy
List of minerals, elements, group names and geochemistry terms encountered in the science of mineralogy. I've chosen to avoid capital letters in most examples, though a great many mineral names hon...
galkhaite, xanthoconite, pyrostilpnite, polybasite, pyrargyrite, djurleite, digenite, covellite, chalcocite, cerargirite, acanthite, aeschynite and 2608 more...
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Open List: Greens
A lits of greens: cooked leafy vegetables; pigments, paint names, compound words, etc; words and phrases that pertain to or contain "green". Please add your favorites!
See this list f...greenery, collard greens, mustard greens, turnip greens, green shoots, viridian green, malachite green, sap green, green grocer, radish greens, beet greens, spring green and 282 more...
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On with their heads!
Words that make other words with the addition of one letter at the beginning. The resulting words are tagged "behead".
men, his, yes, any, iota, limb, aged, laid, land, lead, read, word and 327 more...
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Recently viewed
A random list of things people are looking up on Wordnik.
craftsperson, bobble-head, kiwi and emu brot..., st. isidore the f..., cloudlessness, sangwidges, omnes Una Manet nox, Chappie, Inca dove, ew, C'mere, skepticism and 966 more...
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Learned (or Encountered) in Reading
I have a list for words learned from Newsweek; here's where I keep all the stuff from other shit I read.
Except when I'm looking stuff up and find new words that way. Those go on their...cellie, laminectomy, mridangam, terroir, hypospadias, crus, corpora cavernosa, crura, uretheral meatus, bartholin's gland, coloquintida, colopexy and 921 more...
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near and dear words
epi- opi- where it is at; also connected virtually or otherwise
epitome, epiphany, episcopal, opisthobranch, opisthognathous, oblast, duopsony, opsonin, epistemolgy, epistle, epidote, epidermis and 44 more...
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