Amethyst Key Ring. Amethyst is a lilac to purple variety of the mineral Quartz. It forms beautiful crystals inside volcanic lava bubbles known as geodes. Due to its beautiful colour, Amethyst is one of the most popular gemstones. Please Note: Natural gemstone or semi-precious stone comes from mineral. Due to the naturality, the stones may have a tiny flaw. Meanwhile, cutting or polishing also makes every piece of gemstone vary in colour and size. Image may look different (colour) due to many monitor or device resolutions.
