Ametrine
Ametrine is a quartz gemstone that combines Amethyst and Citrine to create a unique purple yellow hue. The only difference between amethyst, citrine and ametrine is the level of iron in the visible color-zone bands. Although Ametrine has been used since the 17th century, introduced to Europe by the Spanish conquistadors, it was not commercially mined until the 1980s. Ametrine is found in only one mine in the world, in Bolivia.
Since Ametrine is the union of both Amethyst and Citrine, Ametrine combines the powers of both: Amethyst for sobriety and Citrine for prosperity and protection against evil thoughts.