More about the gemstones:
Amethyst is an extremely powerful & protective stone with high spiritual vibrations. It guards against psychic power. Its serenity enhances higher states of consciousness & meditation. It is an excellent cleanser for the blood. Also, enhances memory & improves motivation. Amethyst stimulates the Crown & Throat Chakra.
Pyrite is a powerful protection stone which shields and protects against all forms of negative vibrations and/or energy, working on the physical, etheric, and emotional levels. It stimulates the intellect and enhances memory, helping to recall relevant information when needed. Pyrite assists one in seeing behind facades, promoting an understanding of that which lies beneath words and actions. The ancient Incas used Pyrite for meditation and divination.