![]() Stones of this nature usually command the highest prices. A deep purple stone with red and blue flashes is often categorised as ‘Siberian Amethyst’. ![]() The deep, intense colours hold the most value, especially rich purple specimens with red or blue flashes. Typically, colours range from purple-violet to red-violet. Because of this, Amethyst specimens will vary in colour, depending on the level of impurities in the stones composition. Different Colours and Types of AmethystĪs mentioned previously, the colour of Amethyst is caused by iron and aluminium impurities. Low-grade Amethyst is often heat treated to produce Golden Citrine, due to the latter holding more value that bad-quality Amethyst. When Amethyst is heated to a high temperature, the iron impurities are reduced and can turn the stone into Golden Citrine. Thankfully, the different levels of iron mean that the stones can be distinguished by their colouring. The only difference between the two stones is the level of iron impurities in their composition. Golden Citrine Quartz is the sister stone of Amethyst. Occasionally, Amethyst specimens may appear similar to Purple Sapphire or Purple Spinel however, both of these stones are very rare, so confusion is kept to a minimum. Because of this, Amethyst is rarely confused with other stones. The violet-purple hue is fairly unique, with few gemstones exhibiting the same tone. Typically, Amethyst can be correctly identified through its colour alone. Specimens of this quality are precious, valuable, and highly sought after. Fine-quality Amethyst is typically deep purple in colour, with intense saturation and minimal colour zoning. While the gem can still be identified under artificial light, its true colour will show best in natural light that is soft and warm – ideally, just after sunrise or before sunset. The stone exhibits a violet-purple hue, that looks best in daylight. How to Identify Amethystīy the untrained eye, Amethyst is best identified by its vibrant colouring. Below, we explore the valuable gemstone in more detail. Like all other stones in this category, Amethyst boasts translucent clarity and a strong lustre. The gemstone belongs to the macrocrystalline group of Quartz. Without these impurities in its composition, the stone would be ordinary Transparent Quartz. Amethyst owes it’s vibrant purple colouring to aluminium and iron trace impurities. The official birthstone for the month of February, the gem is often used within birthstone jewellery. A member of the Quartz family of minerals, Amethyst is one of the most precious and popular stones on the market today.
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