Brazil, Color: bi-color, violet / yellow, Hardness: 7, Refractive index: 1.54 1.55, Density: 2.65 2.66, Chemical composition: SiO2, Crystal structure: hexagonal, Lustre: vitreous, Origins: Brazil, Bolivia, Uruguay. Ametrine is a bi-color variety of quartz, Yellow, Orange, Bolivia, Brazil, India, Yellow, Orange, Bolivia, Brazil, India
Southern and central Africa, Sixth Edition (2006)
Scorpio, Libra, Virgo, Scorpio, Libra, Virgo, Scorpio
Taurus
Not Available
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle