Cape Amethyst Bracelet Approximately 10mm New, Unused Cape Amethyst is a combination of amethyst and milky quartz, displaying a milky white color and the purple of amethyst. In beaded form, various types can be seen, such as those with line patterns or those beautifully divided into two colors. It is known by various names, such as "Chevron Amethyst" because of its jagged, mountain-like appearance, and "Dogtooth Amethyst" because it looks like a dog's teeth.