Real turquoise is a naturally occurring mineral composed of hydrated copper and aluminum phosphate. It has been prized for its vibrant blue to green hues and has been used in jewelry and decorative items for centuries.
Genuine turquoise is relatively rare and valuable, making it a target for imitation. Knowing the fundamental characteristics of real turquoise can help you distinguish it from synthetic or fake versions.
The Touch Test: How It Feels in Your Hand
One simple method to test the authenticity of turquoise is through touch. Real turquoise tends to feel cool and smooth to the touch due to its mineral composition.
Fake turquoise, particularly those made from plastic or resin, will often feel warmer and lighter. Additionally, genuine turquoise has a certain heft to it, while imitations may feel unnaturally light.
Visual Clues: Color, Matrix, and Patterns
The color of turquoise can range from sky blue to greenish hues. Genuine turquoise often has a more vibrant and consistent color, though it can also have natural variations.
Another clue is the matrix, which is the pattern of veins or webbing in the stone. Real turquoise often has intricate and natural-looking matrices, whereas fake versions may have patterns that look too uniform or painted on.
Advanced Testing Methods: From UV Light to Chemical Tests
For a more conclusive test, you can use a UV light. Real turquoise usually does not fluoresce under UV light, while some fakes might.
Chemical tests can also be performed, but these should be done with caution as they can damage the stone. For instance, applying a small drop of acetone on a hidden area can help; genuine turquoise will remain unaffected, while dyed or treated stones may show color changes.
Tips from the Experts: What to Look for When Buying
When purchasing turquoise, always buy from reputable dealers who provide certificates of authenticity. Ask about the stone's provenance and look for any documentation that supports its authenticity.
Experts also recommend being cautious of prices that seem too good to be true. Genuine turquoise is valuable, and extremely low prices can be a red flag indicating a fake or treated stone.
