Alexandrite, a captivating gemstone, is renowned for its remarkable ability to change color under different lighting conditions. This phenomenon, known as pleochroism, makes alexandrite a truly unique and sought-after gem. Let’s delve into the fascinating world of color-changing gemstones and explore what makes alexandrite so special. what color is alexandrite stone
The Chameleon Gem: Alexandrite’s Color-Changing Magic
Alexandrite’s color change is dramatic, shifting from a vibrant emerald green in daylight to a rich purplish-red under incandescent light. This shift is due to the gem’s unique chemical composition and crystal structure, which selectively absorbs and reflects different wavelengths of light depending on the light source.
Why Does Alexandrite Change Color?
The color change in alexandrite is attributed to the presence of chromium in its crystal lattice. Chromium absorbs certain wavelengths of light, allowing others to be reflected back to the eye. Daylight, rich in blue and green wavelengths, causes alexandrite to appear green. Incandescent light, on the other hand, is richer in red and yellow wavelengths, causing the gem to appear red or purplish-red.
Beyond Alexandrite: Other Color-Changing Gems
While alexandrite is the most famous color-change gemstone, other gems exhibit this phenomenon, albeit to a lesser degree. These include:
- Garnet: Some varieties of garnet, like color-change garnet, can shift from greenish-blue to purple or reddish-purple.
- Sapphire: Certain sapphires display color change, typically from blue in daylight to violet under incandescent light.
- Diaspore: This lesser-known gem can exhibit a dramatic color change from kiwi green to raspberry pink.
Identifying a True Color-Change Gemstone
It’s important to distinguish between true color change and other optical phenomena, such as play-of-color (seen in opal) or iridescence (seen in labradorite). A true color-change gem displays two distinct colors under different light sources.
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Alexandrite: A June Birthstone and More
Alexandrite is one of the birthstones for June, alongside pearl and moonstone. This adds to its appeal and makes it a popular choice for June birthdays. what is the gemini birthstone color
Caring for Alexandrite Jewelry
Alexandrite is a relatively durable gemstone, but care should be taken to avoid harsh chemicals and extreme temperatures. Cleaning with warm, soapy water and a soft brush is recommended.
“Alexandrite is a truly remarkable gemstone,” says renowned gemologist, Dr. Sarah Miller. “Its dramatic color change makes it a captivating and unique addition to any jewelry collection.”
The Allure of Alexandrite: Rarity and Value
Alexandrite is a rare gemstone, and its value increases with the intensity and clarity of the color change. Fine-quality alexandrite can command high prices, making it a valuable investment. what color represents each month
“The rarity and beauty of alexandrite have made it a highly sought-after gem for centuries,” adds Dr. Miller. “Its unique color-changing properties add to its mystique and allure.”
Alexandrite Rough and Cut
Conclusion: The Magic of Color-Changing Alexandrite
Alexandrite, with its remarkable color-changing properties, stands out in the world of gemstones. Its beauty, rarity, and historical significance make it a treasured gem for collectors and jewelry enthusiasts alike. what color is onyx black
FAQ
- What causes alexandrite to change color? The presence of chromium in its crystal structure causes alexandrite to absorb and reflect different wavelengths of light depending on the light source.
- Is alexandrite expensive? Yes, alexandrite is a rare gemstone, and high-quality stones can be quite valuable.
- What are the colors of alexandrite? Alexandrite typically changes from green in daylight to red or purplish-red under incandescent light.
- How do I care for alexandrite jewelry? Clean with warm, soapy water and a soft brush. Avoid harsh chemicals and extreme temperatures.
- Is alexandrite a birthstone? Yes, alexandrite is one of the birthstones for June.
- What other gemstones change color? Some garnets, sapphires, and diaspore can also exhibit color change.
- How can I tell if an alexandrite is real? Consult a reputable gemologist for proper identification.
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