VIVIANITES
Noun
vivianites
plural of vivianite
Source: Wiktionary
VIVIANITE
Viv"i*an*ite, n. Etym: [So called by Werner after the English mineralogist F. G. Vivian.] (Min.)
Definition: A hydrous phosphate of iron of a blue to green color, growing darker on exposure. It occurs in monoclinic crystals, also fibrous, massive, and earthy.
Source: Webster’s Unabridged Dictionary 1913 Edition
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21 April 2025
ENCYCLOPEDIA
(noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty
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