Amethyst element impurities), and the presence of trace elements, which result in complex crystal lattice substitutions. The hardness of the mineral is the same as quartz, thus it is suitable for use in jewelry. Amethyst occurs in primary hues from a light pinkish violet to a deep purple. Amethyst may exhibit one or both secondary hues, red and blue. The best varieties of amethyst can be found in Siberia, Sri Lanka, Brazil and the far East. The ideal grade is called "Deep Siberian" and has a primary purple hue of around 75–80%, with 15–20% blue and (depending on the light source)
Amethyst Initiative 21 is a socially and medically sound policy that helps parents, schools and law enforcement protect our youth from the potentially life-threatening effects of underage drinking." Choose Responsibility argues that scientific evidence supports the Amethyst Initiative's views and goals, and refutes some of MADD's past claims. Sanford Ungar, president of Goucher College and signee of the initiative argues that opponents should not fear because the Amethyst Initiative is about opening up the debate to improve alcohol policy. He brings about the misconception that they want to "polarize" the issue at hand, but instead wishes to find a better alternative to