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
USA, Southern and central Africa
Yellow
Brown, Green, White, gray, Blue, Yellow
Scorpio, Libra, Virgo, Scorpio, Libra, Virgo, Scorpio
Not Available