What are amethysts? Amethyst is a type of purple quartz mined in Brazil, Uruguay, Bolivia, Argentina, Zambia and Namibia. African Amethysts are known for their color quality, Uruguayan for the deep purple color, and South American Amethysts often come in larger sizes. A very dark amethyst is also mined in Australia. There are as many associations with Amethyst as there are stars in the sky! The common ones are: royalty, sobriety, clarity, spirituality and inspiration.