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 woodstar Amethyst woodstar The amethyst woodstar ("Calliphlox amethystina") is a species of hummingbird in the family Trochilidae. It is found in most of central, and eastern South America proper, in Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Suriname-(the Guianas), Paraguay, Peru, and Venezuela. The bird's range surrounds the Amazon countries into the Andes foothills and higher elevations of upstream river systems, but is not along the Amazon River proper in the central Amazon Basin, or the central upper Basin; it is in Brazil at the river's outlet, and upstream for about 500 km. The amethyst woodstar's natural habitats are subtropical