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
Canada, Columbia, Brazil, Burma, Russia, blue
Yellow
Blue, White, pink, gray, Green
Scorpio, Libra, Virgo, Scorpio, Libra, Virgo, Scorpio
Sagittarius
Not Available
Conchoidal, Uneven, UnevenArthur Thomas, Brittle