Amethyst is one of the prettiest tumblestones to be found. It comes in a wide range of purple colours and is a variety of quartz sio2 . The purple colours found naturally in amethyst occur due to irradiation and the presence of impurities of iron and in some cases other transition metals. It is a very popular stone for use in all kinds of jewellry. Sold in single stones.
Amethyst is one of the prettiest tumblestones to be found. It comes in a wide range of purple colours and is a variety of quartz
