11x9mm pear CUT amethyst.
Stunning colour! Price for each.

Amethyst is a well known mineral and gemstone. It is the purple variety of the mineral Quartz, and its most valuable and prized variety. Its name derives from the Greek "amethystos", which means "not drunken", as Amethyst in antiquity was thought to ward off drunkenness. The colour of some Amethyst specimens from certain localities slowly fade upon prolonged exposure to light. When used as a gemstone, Amethyst is often heat treated to deepen the colour, or to transform it into Citrine. Some varieties may also change to a light green colour, which is given the trade name "Prasiolite", or "Green Amethyst", as it is more commonly known in the gem trade.

Chemical Formula SiO2 Composition Silicon dioxide. Its purple colouring is usually caused by impurities of iron or manganese compounds. Colour Light to dark purple. Sometimes banded with purple and whitish lines. May also be mixed together with Citrine. Streak White Hardness 7 -