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ber•trand•ite



Pronunciation: (bûr'trun-dīt"), [key]
n.
a mineral, hydrous beryllium silicate, Be4Si2O7(OH)2, colorless or pale yellow, with a vitreous luster, occurring as tabular or prismatic crystals in pegmatites and hydrothermal veins.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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