Black tourmaline is a popular gemstone that is often used in jewelry and other decorative items. However, like many gemstones, there are counterfeit versions of black tourmaline on the market. If you are looking to purchase black tourmaline or want to verify the authenticity of a stone you already have, there are a few key things to look for.
- Appearance
Real black tourmaline will have a distinct look to it. It is typically black or dark brown in color and has a shiny, metallic appearance. If the stone you are looking at appears dull or lacks the characteristic luster of black tourmaline, it may not be genuine.
- Weight
Black tourmaline is a relatively heavy stone, so if the stone you are holding feels light, it may not be authentic.
- Hardness
Black tourmaline is a relatively hard gemstone, with a rating of 7-7.5 on the Mohs hardness scale. You can test the hardness of the stone by trying to scratch it with a piece of quartz or a steel nail. If the stone is easily scratched, it may not be real.
- Fracture
Black tourmaline has a characteristic fracture pattern, which is known as conchoidal. This means that the stone will break in a way that produces curved or shell-like shapes. If the stone you are looking at has a different fracture pattern or appears to have been cut with a saw or other tool, it may not be genuine.
- Inclusions
Real black tourmaline may have inclusions or imperfections, but they will be natural and not appear too perfect or regular. If the inclusions appear to be perfectly aligned or look like they have been added artificially, it may not be authentic.
- Testing
If you are still unsure about the authenticity of your black tourmaline, you can take it to a gemologist for testing. They can use specialized equipment to analyze the stone’s properties and determine whether it is genuine.
In conclusion, black tourmaline is a beautiful and popular gemstone, but there are counterfeit versions on the market. By examining the stone’s appearance, weight, hardness, fracture pattern, and inclusions, you can determine whether it is genuine. If you are still unsure, take the stone to a professional gemologist for testing.
