Ametrine (also called trystine) is a beautiful stone featuring purples and golds.
It forms where amethyst crystals grow along side citrine. Found in Brazil (Rio Grande do Sul) and Bolivia, it is a quartz crystal. (1)
It is used in crystal healing: in meditation; to disperse negativity; and to facilitate blockages in physical, mental, emotional and auric bodies. It is thought that the amethyst raises the clearing quality of citrine to a higher level of vibration while expanding the extent of the energy. Vibrates to the number 4. (2)