Mineral Guide > Mineral Gallery > Amethyst gem stone

Amethyst gem stone

So named because it was supposed by the ancient Persians that cups made of it would prevent the liquor they contained from intoxicating. The stone consists of crystallized quartz of a purple or blue violet color, probably derived from a compound of iron and soda. The color is not always diffused through it, and is less brilliant by candle light.

Amethyst picture