Ametrine is a very rare crystal coming from less than a handful of mines worldwide. It is a quartz based crystal in which Amethyst and Citrine have formed within the same crystal structure. As such it can be used in place of either stone but the influences of both crystals in the same stone allow them to amplify and augment each other so that while you may use Amethyst for physic work or mental strength while performing a task, the Citrine in the crystal can help increase the chance that your work will be successful. While you may use Citrine for money or wealth work the Amethyst can help ensure that the source of that money or wealth is strong, stable and sustainable. Because this crystal is a blend of three crystals it is also a powerful focus for strengthening and increasing the chance of success in your Alchemy and transformative work.