Ametrine is a unique gemstone. The stone comes from two types of quartz being mixed together: amethyst and citrine. As you may have guessed, the name is actually a combination of the two stones that ametrine derives from.

The color of ametrine is a mixture of yellow citrine and purple amethyst blends. Other names for the ametrine gemstone include trystine or bolivianite. The latter name comes from the fact that just about all ametrine mined today is unearthed in Bolivia

Ametrine is a unique gemstone. The stone comes from two types of quartz being mixed together: amethyst and citrine. As you may have guessed, the name is actually a combination of the two stones that ametrine derives from.

The color of ametrine is a mixture of yellow citrine and purple amethyst blends. Other names for the ametrine gemstone include trystine or bolivianite. The latter name comes from the fact that just about all ametrine mined today is unearthed in Bolivia.

If you’re interested in the technical specifications of ametrine, then they are as follows:

• Mohs Hardness: 7

• Color: Color-zoned; Amethyst zones - purple to violet; Citrine zones - yellow to orange; Some stones may appear mauve, peach, rosy-gold, or champagne

• Crystal structure: Trigonal

• Luster: Vitreous (glassy)

• Transparency: Translucent to transparent

• Refractive index: 1.54-1.55

• Density: 2.65

• Cleavage: None

• Fracture: Conchoidal

• Streak: White

• Luminescence: Sometimes weak fluorescence - blue or green in LW-UV & SW-UV

• Pleochroism: Sometimes in zones; Amethyst zones - sometimes weak or moderate purple to reddish-purple; Citrine zones - sometimes weak yellow to orange

• Birefringence: 0.009

• Dispersion: 0.013

• Optical effects: Potential "optical dishes" (visible light passing through in many directions, making different uniaxial optic figures visible) if concave dishes are cut into its surface