What Makes Alexandrite Change Color?
Imagine a gemstone that transforms like magic, shifting from lush green in daylight to a rich red under incandescent light. This enchanting phenomenon is the hallmark of Alexandrite, one of the rarest and most captivating gemstones in the world. At Robinson's Jewelers, we are fascinated by this chameleon-like gem, and today, we delve into the science and allure behind its mesmerizing color change. Whether you're a gemstone enthusiast or searching for a unique piece of Alexandrite jewelry, this guide will illuminate the secrets of this extraordinary stone.
Alexandrite's color-changing ability isn't just a trick of the light—it's a result of its unique chemical composition and the way it interacts with different light sources. This gemstone is a variety of chrysoberyl, and its rare color shift is due to the presence of chromium, which absorbs specific wavelengths of light. In natural daylight, Alexandrite appears green or bluish-green, but under artificial light, it transforms into a reddish or purplish hue. This remarkable trait makes it a favorite among collectors and jewelry lovers alike.
The Science Behind Alexandrite's Color Change
The secret to Alexandrite's color-changing magic lies in its crystal structure and the way it absorbs light. Chromium ions within the gemstone absorb light in the yellow and blue parts of the spectrum, leaving green and red light to dominate depending on the light source. In daylight, which is richer in blue and green wavelengths, the stone appears green. Under incandescent light, which has more red wavelengths, the stone takes on a reddish hue. This phenomenon, known as the "Alexandrite effect," is what makes this gemstone so unique and highly prized.
Why Alexandrite is So Rare
Alexandrite was first discovered in Russia's Ural Mountains in the 1830s and was named after Tsar Alexander II. Today, most Alexandrite comes from Brazil, Sri Lanka, and East Africa, but high-quality stones remain exceptionally rare. The finest specimens exhibit a vivid color change and are free of inclusions. Due to its scarcity, Alexandrite is often more valuable than diamonds, rubies, or emeralds, making it a true treasure for gemstone connoisseurs.
Alexandrite in Jewelry
Alexandrite's rarity and beauty make it a stunning choice for fine jewelry. It is often set in white gold or platinum to enhance its cool tones, though it also pairs beautifully with yellow gold for a vintage look. Popular designs include Alexandrite rings, pendants, and earrings. As the birthstone for June, it also makes a meaningful gift for those born in that month.
Caring for Your Alexandrite Jewelry
While Alexandrite is a durable gemstone with a hardness of 8.5 on the Mohs scale, it still requires proper care to maintain its brilliance. Clean your Alexandrite jewelry with warm soapy water and a soft brush, avoiding harsh chemicals. Store it separately from other gems to prevent scratches. With the right care, your Alexandrite piece will remain a dazzling heirloom for generations.
Explore Alexandrite at Robinson's Jewelers
At Robinson's Jewelers, we celebrate the allure of Alexandrite with a curated selection of exquisite pieces. Whether you're drawn to its mystical color change or its rarity, our collection offers something for every taste. Visit our Alexandrite Jewelry section to discover this enchanting gemstone for yourself.