Alexandrite. A variety of chrysoberyl found in the mica slate of the Ural mountains. It is of a rich garnet color by transmitted light; by daylight of a dark moss green. It is the only stone that so changes. The finest specimens or alexandrite are nearly as valuable as diamonds.

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“Not a drop of rain falls in the sandy desert or on the barren rock, however useless it may seem to be, that is not seen to be of value by God, and that is not designated to accomplish some important purpose there.”
–Albert Barnes, Notes, Job 38:26