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Webster 1913 Edition

Boracite

Bo′ra-cite

,
Noun.
(Min.)
A mineral of a white or gray color occurring massive and in isometric crystals; in composition it is a magnesium borate with magnesium chloride.

Webster 1828 Edition

Boracite

BO'RACITE

,
Noun.
Borate of magnesia; magnesian earth combined with boracic acid. It is generally of a cubic form, and remarkable for its electrical properties when heated.

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