Hypertext Webster Gateway: "euphotide"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Euphotide \Eu"pho*tide\, n. [Gr. ? well + ?, ?, light. So called
because of its pleasing combination of white and green.]
(Min.)
A rock occurring in the Alps, consisting of saussurite and
smaragdite; -- sometimes called gabbro.
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