There are simple and simple ways to distinguish glass from crystal. You need to look carefully at the products to find differences in external characteristics. With this task can handle a person who does not even have a certain knowledge.
How to distinguish crystal from glass
There are several types of verification. Take the glass and crystal and compare their temperature. Crystal under equal conditions will be colder than glass. If you use the same method by heating these two objects, you can notice that the crystal is heated much slower than the glass.
Crystal is hard to damage, because on the surface of the crystal you will rarely see any scratches. This can not be said about the glass. But do not think that the crystal is difficult to break, it is not as solid as a diamond.
If we talk about artificial crystal, then it should be given to experts, so that they have an expertise, so that they reveal how much in the crystal contains percent of lead. In this case, the crystal should not have more than 10% of lead oxide. But in the glass its content should not be more than 4% of lead oxide.
Take a closer look at the structure of crystal and glass. The glass has slightly noticeable gas bubbles. But on the crystal these bubbles will not be.
Look at the light through the glass. You will see svili, these are the lines of flow of that substance from which the glass then turns. If through a real crystal to look at the light, then these lines you will not see.
Watch how objects look when you look at them through glass or crystal. Glass slightly increases the objects. In crystal there is a noticeable bifurcation.
How to distinguish a product from glass from a product made of crystal
The most important difference is the thermal conductivity. If you apply a palm to the glass, it will quickly heat up and be warm. Crystal, however long kept it in warm hands, remains cool. Patricians in ancient Rome cooled their hands in the heat with the help of crystal balls.
If you hold the wet fingers on the surface of the crystal, there will be a clear sound, which resembles a ringing, and the glass of this "sound" does not work. If there are foreign inclusions and gaseous vesicles, then this indicates that this is ordinary glass. Rhinestone in itself can only include turbidity and cracks.
The main difference, which is not at the glass, is the "crystal" ringing. If you knock two products against each other, you can hear a growing, long, resonant, resonant, resonant rumble that is not characteristic of the glass.
If you have doubts, but you need to establish the authenticity of crystal, it will be better to resort to expertise and refer to specialists who work in this field.