Definition of epidote in English:

epidote

Syllabification: ep·i·dote
Pronunciation: /ˈepiˌdōt
 
/

noun

  • A lustrous yellow-green crystalline mineral, common in metamorphic rocks. It consists of a hydroxyl silicate of calcium, aluminum, and iron.
    More example sentences
    • Along the contact zone the limestones were recrystallized into a cloudy white, massive calcite containing grossular, epidote, magnetite, quartz, and tremolite.
    • Iron was remobilized and limned specular hematite, along with epidote, actinolite/tremolite, and andradite.
    • These crystals are associated with chalcopyrite, galena, quartz, calcite, epidote, and chlorite.

Origin

early 19th century: from French épidote, from Greek epididonai 'give additionally' (because of the length of the crystals).

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