Name Amethyst
New Cape 
Origin South Africa
Medium translucent lilac.
The name amethyst derives from the 13th century, from the Greek word amethystos, meaning remedy against drunkenness. A variety of crystallised quartz that occurs in colours ranging from deep purple to pale lavender. The presence of manganese in clear quartz produces amethyst. While the amount of iron content varies the strength of the purple colouration.