a mineral, calcium aluminum iron silicate, Ca2(Al, Fe)3Si3O12(OH), occurring in green prismatic crystals.
- ep·i·dot·ic [ep-i-dot-ik], /ˌɛp ɪˈdɒt ɪk/, adjective
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How to use epidote in a sentence
Crystalline epidote, and whitish quartz, apparently from a vein.
Purplish-brown epidote, with small nests or concretions of green epidote and quartz; forming a sort of amygdaloid.
Conglomerate, containing angular fragments of yellowish-grey quartz-rock, in a base of compact epidote.
A nearly uniform greenish compound of epidote intimately mixed with quartz, also occurs at this place.
Whether the colour depends upon epidote, chlorite, or some other substance, we were not able to determine.
British Dictionary definitions for epidote
a green mineral consisting of hydrated calcium iron aluminium silicate in monoclinic crystalline form: common in metamorphic rocks. Formula: Ca 2 (Al,Fe) 3 (SiO 4) 3 (OH)
- epidotic (ˌɛpɪˈdɒtɪk), adjective
Collins 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 epidote
A yellowish-green or blackish-green monoclinic mineral. Epidote occurs as formless grains or as prism-shaped crystals, and is found in limestones that have undergone slight metamorphism or in igneous rocks. Chemical formula: Ca2(Al, Fe)3(SiO4)3OH.
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