Amethyst is crystalline quartz in colors ranging from pale lilac to deep reddish purple. It has a relatively high hardness of 7, which means it’s very scratch resistant. The February birthstone makes a fine gem for any kind of jewelry.
As the color purple has long been connected with royalty, amethysts were favored by the ruling class. Over time, amethysts have also come to be associated with spirituality, mental clarity, and healing
Specifically a purple variety of quartz whose saturation may range from pale to vibrant. Generally speaking, vivid stones are more highly sought-after and valuable than paler ones.