The cornelian appeased anger, and the hyacinth provoked sleep, and the amethyst drove away the fumes of wine.

The garnet cast out demons, and the hydropicus deprived the moon of her colour.

The selenite waxed and waned with the moon, and the meloceus, that discovers thieves, could be affected only by the blood of kids.
Leonardus Camillus had seen a white stone taken from the brain of a newly killed toad, that was a certain antidote against poison.

The bezoar, that was found in the heart of the Arabian deer, was a charm that could cure the plague.

In the nests of Arabian birds was the aspilates, that, according to Democritus, kept the wearer from any danger by fire.
The King of Ceilan rode through his city with a large ruby in his hand, as the ceremony of his coronation.