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