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