Coral is a fascinating and highly prized gemstone known for its vibrant colors and intricate patterns. However, due to its desirability, there are synthetic and imitation versions of coral in the market. Distinguishing real coral from fakes can be challenging, but with some knowledge and careful observation, you can learn to identify authentic coral. In this article, we will guide you through the key indicators that can help you determine the authenticity of coral.
Understanding Real Coral
Before delving into the identification process, it’s important to understand the characteristics of genuine coral. Real coral is composed of calcium carbonate and is formed by living organisms called coral polyps. It is typically found in oceans and is harvested for its use in jewelry and decorative items. Coral comes in various colors, including red, pink, black, blue, and more, with each color having its own distinct properties and market value.
Visual Examination
Color Variation and Uniformity: Real coral often exhibits natural color variations, with subtle gradients and patterns throughout the specimen. Look for shades that are not too uniform or perfectly consistent. Synthetic or imitation corals may have a more artificial appearance with a consistent and uniform color throughout.
Texture and Surface: Examine the surface of the coral carefully. Real coral should have a porous and uneven texture, resembling tiny, interconnected holes. The surface should feel slightly rough to the touch. Synthetic corals may have a smoother and more polished appearance, lacking the natural texture and imperfections of real coral.
Natural Imperfections: Real coral may have natural imperfections, such as small pits, grooves, or bumps. These imperfections are a result of the coral’s organic formation process and can serve as indicators of authenticity. Synthetic corals are often produced in controlled environments, leading to a more flawless and uniform appearance.
Underwater Reaction: If you have access to a small sample of coral, you can perform a simple test to determine its authenticity. Place the coral in a container of saltwater or seawater. Real coral will exhibit a slight effervescence or bubbling reaction due to the release of carbon dioxide. However, be cautious when using this test, as it may not be suitable for all types of coral and could potentially damage the specimen.
Observing Coral Structure
Polyp Patterns: Real coral will often exhibit intricate polyp patterns, resembling tiny branches or tubes. These structures are indicative of the coral’s organic formation and growth. Imitation or synthetic corals may lack these detailed polyp patterns or have artificial-looking designs.
Translucency and Opacity: Hold the coral up to a light source and observe its translucency. Real coral often has a certain level of translucency, allowing light to pass through to some extent. However, keep in mind that not all types of coral will exhibit the same degree of translucency. Synthetic or imitation corals may appear more opaque or have a consistent, plastic-like appearance.
Expert Examination and Testing
If you are uncertain about the authenticity of your coral, seeking the expertise of a professional gemologist or a reputable jeweler can be beneficial. They have the knowledge, experience, and specialized equipment to accurately assess and authenticate gemstones, including coral. Advanced gemological testing methods, such as spectroscopy or microscopy, can provide further insights into the composition and structure of the coral.
Beware of Imitation Materials
Apart from synthetic corals, it’s important to be aware of imitation materials that can resemble real coral. These may include materials like plastic, glass, or dyed shells. Here are a few additional tips to help you differentiate between real coral and imitations:
Weight and Temperature: Real coral tends to be heavier than most imitations. Additionally, when touched, genuine coral should feel cool to the skin, while imitations made of plastic or glass may feel room temperature or warm.
Visual Clarity: If the coral appears too perfect, with an extremely smooth surface and flawless coloration, it may be an imitation. Real coral often exhibits natural irregularities and imperfections.
Price and Seller Reputation: Be cautious of exceptionally low prices or deals that seem too good to be true. Reputable sellers are more likely to offer genuine coral, ensuring transparency about the origin and authenticity of their products.
Conclusion
Identifying real coral from fake requires careful observation, knowledge of the gemstone’s characteristics, and sometimes the assistance of experts. Visual examination of factors such as color variation, texture, surface imperfections, and coral structure can provide valuable insights. Additionally, observing the coral’s reaction to saltwater and seeking professional gemological expertise can help confirm its authenticity. By familiarizing yourself with the properties of real coral and being vigilant during the purchasing process, you can confidently differentiate between authentic coral and imitations, ensuring that your coral acquisitions are genuine and valuable.
