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.

Fun facts

The patron of romantic love wore an amethyst ring carved with the image of Cupid.
The astrologer wrote that amethyst quickens intelligence and gets rid of evil thoughts.
Single amethyst crystals can be huge: the GIA Museum displayed a doubly terminated crystal that weighed 164 pounds.
Birthstone June
Anniversary 6th and 17th wedding anniversaries
Crystal Structure Trigonal
Composition Silicon Dioxide
Luster Vitreous
Hardness 7
Refractive Index 1.54 to 1.55
Specific Gravity 2.65
DR 0.009