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
Australia, Southern and central Africa, green, brown, Australia, France, green, brown, Australia, France
Yellow
Green, Colorless, gray, Yellow, White
Scorpio, Libra, Virgo, Scorpio, Libra, Virgo, Scorpio
Libra
Not Available
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic