AMETRINE


All facts and figures taken from the GIA

AMETRINE

This transparent quartz has colors of both amethyst and citrine, and is called ametrine or amethyst-citrine. Whether projecting from pegmatite walls or encrusting cavities in volcanic rock, quartz abounds worldwide. People have used quartz in jewelry for thousands of years. When quartz displays the colors of amethyst and citrine in a single gem, the material is called ametrine or amethyst-citrine. Ametrine’s only commercial source is the Anahi mine in Bolivia.


MINERAL: Quartz
CHEMICAL COMPOSITION: SiO2
COLOR: Bicolor orange/yellow and purple
REFRACTIVE INDEX: 1.544 to 1.553
SPECIFIC GRAVITY: 2.66 (+0.03/-0.02)
MOHS HARDNESS: 7


Though ametrine itself is not a birthstone it can be considered the birthstone of February, the birthstone of November or the Pisces birthstone because it is part amethyst, part citrine.

FOUND WHERE

Precious_Gemstone_Where_Found_Ametrine