This gorgeous, high-grade purple Chevron Amethyst Sphere measures a tactile 7.5cm in diameter. Chevron Amethyst, also known as Dream Amethyst or Dogtooth Amethyst, displays stunning deep purple Amethyst and V-Shaped white quartz patterns. This piece also displays a small shimmering rainbow. Please note: this piece displays some natural pits and cavities on its otherwise smooth, polished surface. What Is Chevron Amethyst Made Of? Amethyst is a form of Quartz, which is a silica mineral primarily composed of silicon dioxide. The Quartz family of minerals encompasses a wide range of stones, including sub-sets such as Chalcedony gems like Jasper and Agate. Quartz can occur in many colours, such as pink Rose Quartz, transparent Clear Quartz, and grey-brown Smoky Quartz. Amethyst is the purple variety of this versatile mineral, and is sometimes thus referred to as Purple Quartz. Chevron Amethyst is lined by white quartz patterns. How Does Amethyst Form? The stone's distinctive violet colour is caused by natural irradiation and traces of iron in the crystal lattice. Types Of Amethyst Amethyst can occur in a range of shapes and colours. This stone can be found with large natural points, or it can be polished into smooth shapes as polished amethyst. Some of the varieties stocked at Madagascan Direct are as follows: Smoky Amethyst, found in Brazil, is a gorgeous mixture of Clear Quartz, Smoky Quartz, and Amethyst. Ametrine, found in Bolivia, is a combination of Amethyst and Citrine which displays stunning zones of golden-yellow and translucent purple. Chevron Amethyst, otherwise known as Dream Amethyst, is a form of Amethyst with V-shaped patterns of white Quartz. Lavender Amethyst, which can be found in large druzy crystals in some of our Agate pieces from India, displays lighter pink-purple colours than the standard deep violets of Amethyst.