Bicolour Amethyst

This is a unique variety of Quartz from the one of the most impressive deposits in the world.  Bicolour amethyst is a naturally occurring purple and clear bi-color variety that is formed by a unique twin law ("Brazil Law Twinning") where two separate individually colored crystals are intergrown to form an alternating "radiation" pattern of purple and clear triangles when viewed down the c axis.  The two colors are oriented based upon their position inside the crystal to create the famous bicolor gemstones.  The Anahí Mine is the world’s only commercial source not only of gemmy Ametrine but also of naturally occurring (unheated) Citrine, Bicolour Amethyst andBicolour Citrine.

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Bolivian Bicolour Amethyst

23.75 carats of flawless bicolour amethyst from Bolivia
$51.75

Bolivian Bicolour Amethyst

20.55 carats of flawless bicolour amethyst from Bolivia
$41.00

Bolivian Bicolour Amethyst

20.75 carats of flawless bicolour amethyst from Bolivia
$41.50

Bolivian Bicolour Amethyst

21.1 carats of flawless bicolour amethyst from Bolivia
$42.25

Bolivian Bicolour Amethyst

15.85 carats of flawless bicolour amethyst from Bolivia
$31.75