comes from the Greek word A, meaning "not" and Methuskein, meaning
"to intoxicate"; a reference to the ancient belief that the stone protected its owner from
drunkenness. It is the most highly valued and recognizable gemstone of the
macrocrystalline Quartz family. It is prized as a semiprecious gem for its violet color. It
contains more iron oxide (Fe2O3) than any other variety of Quartz, and experts believe
that the color is the result of its iron content.