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.

---

“A saint cannot do evil before men but he gives opportunity for sinners to speak evil of God. If there be any spots on a Christian's coat, the world will soon spy them.”
–George Swinnock in Works