Definition of epidote
: a yellowish-green mineral Ca2(Al,Fe)3Si3O12OH usually occurring in grains or columnar masses and sometimes used as a gemstone
Origin of epidote
French épidote, from Greek epididonai to give in addition, from epi- + didonai to give — more at date
First Known Use: 1808
Learn More about epidote
Britannica.com: Encyclopedia article about "epidote"
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