Ametrine is a natural, semi-precious, bi-color gemstone from the Quartz mineral family. It is regarded as a mixture of Amethyst and Citrine appearing as bands of purple and orange on the crystal. Vedic astrology recommends this gemstone as the substitute of Pitambari Neelam and it is also worn as a healing gemstone. Ametrine hardness measures 7 on Mohs scale which makes it scratch resistant enough to be worn as a jewelry stone.