Green tourmaline, also known as verdelite, is a popular and valuable gemstone that is highly sought after by collectors and jewelry enthusiasts. However, it can be difficult to distinguish genuine green tourmaline from synthetic or treated versions. In this article, we’ll provide a detailed guide on how to tell if green tourmaline is real.
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Step 1: Examine the Color
Genuine green tourmaline typically has a natural and consistent green color, without any irregular hues or unnatural tones. Be wary of gems that appear too vivid or neon in color, as this may indicate synthetic or treated tourmaline.
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Step 2: Check the Clarity
Green tourmaline is typically transparent or translucent, with few inclusions or blemishes. If the gemstone appears cloudy or contains noticeable bubbles or inclusions, it may not be genuine.
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Step 3: Determine the Refractive Index
The refractive index, or the way that light bends as it passes through the gemstone, can be a useful indicator of authenticity. Genuine green tourmaline typically has a refractive index of 1.62 to 1.64, while synthetic or treated tourmalines may have a different refractive index.
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Step 4: Test the Hardness
Green tourmaline has a hardness of 7 to 7.5 on the Mohs scale, which means that it can scratch glass but can be scratched by harder materials like diamonds. If the gemstone is easily scratched or shows signs of wear, it may not be genuine.
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Step 5: Seek Expert Opinion
If you’re still unsure about the authenticity of a green tourmaline, seek the opinion of a professional gemologist or appraiser. They can provide further analysis and testing to confirm the gemstone’s authenticity.
In conclusion, authenticating green tourmaline requires careful examination of its color, clarity, refractive index, and hardness. By following these steps, you can identify genuine green tourmaline and avoid purchasing synthetic or treated versions.
