It was attributed the power to prevent loss of blood, strengthen the heart, and negate poisons. They are a cousin to the Sapphire. If your birthday is in August, you will have the Peridot for your birthstone. The Peridot is a light green, almost electric color. For full magical power, it should be set in gold.
Peridot is the stone assigned to the sun.
You will be able to find Peridot easily, and it should be nicely affordable. September birthdays are represented by the Sapphire . Sapphire can be found in a rainbow of colors, all but red. Sapphires render black magic harmless, and help the wearer discern falsehoods. Opals are usually opaque white stones with rainbow color specks or flashes that play over the surface.