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Webster 1913 Edition
Vivianite
Viv′i-an-ite
,Noun.
[So called by
Werner
after the English mineralogist F. G.
.] Vivian
(Min.)
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.
Webster 1828 Edition
Vivianite
VIV'IANITE
,Noun.