Amethyst Tumbled Stone
Amethyst is one of the most popular of the semi precious stones. It occurs in colours ranging from pale lilac to deep reddish purple.
Amethyst is a well known mineral and gemstone. It is the purple variety of the mineral Quartz
, and its most valuable and prized variety. I - See more at: http://www.minerals.net/mineral/amethyst.aspx#sthash.9z2gFvSK.dpuf