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Webster 1913 Edition

Vesuvianite

Ve-su′vi-an-ite

,
Noun.
(Min.)
A mineral occurring in tetragonal crystals, and also massive, of a brown to green color, rarely sulphur yellow and blue. It is a silicate of alumina and lime with some iron magnesia, and is common at Vesuvius. Also called
idocrase
.

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