epidote
|ep-i-dote|
🇺🇸
/ˈɛpɪdoʊt/
🇬🇧
/ˈɛpɪdəʊt/
added / given (as an addition)
Etymology
'epidote' originates from Neo-Latin 'epidotus', ultimately from Greek 'epidōtos' (ἐπιδωτός), where the prefix 'epi-' meant 'upon, in addition' and the root 'didonai' (to give) meant 'given/added'.
'epidōtos' in Greek passed into Neo-Latin as 'epidotus', then into French as 'épidote' and finally into modern English as 'epidote'.
Initially it meant 'given' or 'added' (something given in addition); over time it came to name the specific greenish mineral now called 'epidote'.
Meanings by Part of Speech
Noun 1
a common pistachio-green to greenish-black silicate mineral of the epidote group, typically found in metamorphic and hydrothermally altered igneous rocks; chemically a calcium aluminum iron sorosilicate (general formula Ca2(Al,Fe)3Si3O12(OH)).
Epidote is commonly found in metamorphic rocks such as schist and gneiss.
Verb 1
to convert a rock or mineral into epidote (to undergo epidotization).
Hydrothermal fluids epidotized the original feldspar crystals.
Adjective 1
relating to or containing epidote (used in geology/mineralogy).
Epidotic alteration of the rock produced greenish crystals along the fractures.
Last updated: 2025/10/07 04:29