Amethyst is rated at 7 on the Moh's Scale of Hardness. Because of its relative hardness and having no particular warnings for care, Amethyst can be used for all jewelry purposes. Amethyst is found in a variety of hues of purple including deep purple, light lilac, lavender and mauve. The pale lilac colors, coined Rose De France, were once considered undesirable but have recently become a popular fashion favorite due to intensive and clever marketing. Regardless of this popularity, the deep, rich purple colors are still the most sought-after.
Bicolour amethyst displays violet on one end of the rough and clear on the other. 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.
Our bicolour amethyst originates from the Anahi mine in Bolivia. See this Blog post to learn more about the Anahi mine.