Afghanistan, Australia, India, blue, green, blue, green
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
Sagittarius, Pisces, Aquarius, Sagittarius, Pisces, Aquarius, Sagittarius, Pisces, Aquarius
Scorpio, Libra, Virgo, Scorpio, Libra, Virgo, Scorpio
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Not Available