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, violet, blue, violet, blue
Yellow
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Scorpio, Libra, Virgo, Scorpio, Libra, Virgo, Scorpio
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius