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
Russia, Madagascar, Brazil
Yellow
Green, Green, White, Blue
Scorpio, Libra, Virgo, Scorpio, Libra, Virgo, Scorpio
Virgo
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006)
Indiscernible
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal