Having chills refers to feeling excessively cold, even when you are wearing warm clothing or are wrapped in blankets. When you have the chills, you may also be shivering or look pale. Chills are often related to fever, an increase in body temperature above normal (98.6 degrees Fahrenheit). Fever is a sign of inflammation or infection in the body.
Amethyst is a well known mineral and gemstone. It is the purple variety of the mineral Quartz, and its most valuable and prized variety.Its name derives from the Greek amethystos, which means not drunken, as Amethyst in antiquity was thought to ward off drunkenness.hen used as a gemstone, Amethyst is often heat treated to deepen the color, or to transform it into Citrine. Some varieties may also change to a light green color, which is given the trade name Prasiolite, or Green Amethyst, as it is more commonly known in the gem trade.
Amethyst is a violet variety of quartz often used in jewelry. The name comes from the Ancient Greek á¼ a- (not) and Î¼Î­Î¸ÏÏÏÎ¿Ï methystos (mÃ©thystos), intoxicated a reference to the belief that the stone protected its owner from. drunkennesstructure Edit. Amethyst is a purple variety of quartz (SiO 2) and owes its violet color to irradiation, iron impurities (in some cases in conjunction with transition element impurities), and the presence of trace elements, which result in complex crystal lattice substitutions.