Turquoise. A hydrous phosphate or alumina containing a little copper. It has a blue, or bluish-green color, and usually occurs in kidney-shaped masses with a nodular surface, like that of a bunch of grapes. The fine specimens are worth nearly half as much as diamonds.

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“For it is by grace you have been saved, through faith – and this not from yourselves, it is the gift of God.”
– Ephesians 2:8