You will need
  • - strong magnifier;
  • - magnet;
  • - precise electronic scale;
  • woolen cloth and paper.
Instruction
1
The first sign of fraud is too high quality. In nature are very rare natural gems are larger in size and free of defects. This also applies to amber, and turquoise, and rubies and chrysolites. If you are offered a large gem with absolutely no flaws, and for ridiculous money, think. However, if the price is not a funny something to consider too. Stones of this quality have certificate of authenticity and sold only in the major jewelry stores.
2
The next important criterion is the hardness. Almost all gems have a higher density than glass, but because it will leave a noticeable scratch.
3
Provides high density and lower thermal conductivity. All gems on the touch seem to be more cold than glass imitations. Touch the tip of the tongue to the glass and quartz and you will feel the quartz to the touch much cooler.
4
Grenades are easy to distinguish from the glass with a magnet. Put the product with pomegranate on a digital scale and brought it to the stone magnet. If the weight does not change, before you fake.
5
Amber can be easily determined by electrostatic properties. RUB the stone on the wool thing, and then bring to the chopped paper. To date, the amber paper is instantly attracted. Glass has no such properties.
6
Topaz is easily distinguished by the characteristic "slipperiness". They are very easily polished and feel silky seem, glass imitation will never be as smooth.
7
Real emerald always contains inclusions, which resemble small spirals or feathers. He seems like vague and lacks a strong Shine. Examine the stone under a strong magnifying glass. Pure flawless emerald is sure to be fake.
8
These amethysts are always heterogeneous in color, and a variety of inclusions. Even in absolutely flawless amethyst under strong magnification, visible tiny air bubbles, cracks and twisted spiral.
9
Very often counterfeited natural turquoise. To do this started with the ancient Egyptians. Now just to distinguish a fake only after a full spectral, gemmologicheskijj and chemical analysis. Therefore, guided by the price. Jewelry real turquoise is rare and only in small pieces. Therefore, a product with inlay of natural turquoise can cost less than $ 200.