Photo: Laurel |
If you long for jewelry on a budget that can't be stretched to include the 4 precious stones of diamonds, emeralds, rubies or sapphires, you might consider an amethyst. It is a gorgeous colored stone in its own right. In fact for centuries, amethyst was one of the 5 "Cardinal Gems of the Old World" and valued as a precious stone ... up until the 18th century when mines were discovered in Brazil lowering its price. Unlike the other 4 gemstones that become exponentially more expensive (and often unaffordable) as their carat weight increases, you can get a huge amethyst without breaking the bank. As beautiful as in antiquity when amethyst was rare, there is just more amethyst in circulation today because mines in Brazil still yield large depositions of it.
An amethyst is a violet variety of quartz (SiO2), a silicate mineral. It is the most valuable of all the quartz crystals and like all quartz, forms in lava when gas bubbles become trapped, letting crystals form inside the cavities created by the bubbles. Containing impurities of iron and sometimes other trace minerals, the amethyst's purple shade is the result of irradiation (i.e., its exposure to radiation). Just like with other gemstones, it takes millions of years for the earth to make amethyst.While amethyst can range from a light lavender to a deep purple, today its value is determined by its clarity and depth of purple color. Collectors look for flashes of red in the stone. High quality amethyst is mined in Siberia, Sri Lanka, Brazil and Uruguay. Once undesirable in hue, pale purple (or lilac -- sometimes called "Rose de France") amethyst is also becoming popular thanks to a successful marketing campaign.
Amethyst scores a 7 on the Mohl's Scale of Gemstone Hardness making it very suitable and durable to wear as jewelry. The lovely purple quartz falls sightly below an emerald (7.5 - 8) and higher than tanzanite (6.5 - 7), peridot (6.5 - 7), opal (5.5 - 6.5) and pearls (4.5).