The essence of the color purple, amethyst is beautiful enough for crown jewels yet affordable enough for class rings
Crystalline quartz in shades of purple, lilac, or is called amethyst, a stone traditionally worn to guard against drunkenness, and to instil a sober and serious mind. Amethyst is dichroic, showing a bluish or reddish purple tinge when viewed from different angles. Usually faceted as a mixed- or step-cut, amethyst has distinctive inclusions which look like tiger-stripes, thumb- prints, or feathers. Some amethyst is heat-treated tochange the color to yellow, producing citrine(see opposite). Crystals that are part citrine and part amethyst are called ametrine.
Amethyst is found in alluvial deposits or in geodes. Some of the largest geodes containing amethyst are in Brazil. Amethyst from the Urals(Russia) has a reddish tinge; Canadian amethyst is violet. Other localities include Sri Lanka, India, Uruguay, Madagascar, the USA, Germany, Australia, Namibia, and Zambia.
|Anniversary||6th and 17th wedding anniversaries|
|Refractive Index||1.54 to 1.55|