Amethyst is a transparent to translucent purple quartz. The color comes from iron and radiation.
The more you know... Smoky quartz, amethyst, and citrine are all varieties of quartz; smoky quartz is colored by radiation, amethyst by iron and radiation, and citrine by heat-altered iron.
This listing is for one intuitively chosen tumble. Photos are representative of the stone you will get. Feel free to leave an order comment if you prefer a certain look (ie. more jammy, darker, lighter, etc.). Order notes will be consulted, but we can not guarantee your request will be available.