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Webster 1913 Edition
Brucite
Bru′cite
,Noun.
 [Named after Dr. A. 
Bruce 
of New York.] (Min.) 
(a) 
A white, pearly mineral, occurring thin and foliated, like talc, and also fibrous; a native magnesium hydrate. 
(b) 
The mineral chondrodite. 
[R.] 
Webster 1828 Edition
Brucite
BRU'CITE
,Noun.