Everyone loves crystal in life, but there are often artificial crystals (glasses) on the market. How to quickly distinguish between glass and crystal? In general, you can distinguish between glass and crystal by temperature, weight, refraction, inclusion, hardness, brilliance, and magnetic field.
One is the temperature. In normal environments, natural crystals have a lower temperature than glass, and they feel slightly cold when they are in contact with the palms or cheeks. Even in the hot summer months, the surface of the crystals with the tongue will have a cold and cool feeling. The fake crystal has no cool feeling.
The second is the weight. Natural crystals are stone-like materials with high density and light weight. The relatively light weight is most likely a fake crystal made of glass or plastic.
The third is refraction. Natural crystals have birefringence. Place a black line on a white cloth or white paper, then place the crystal on it. When viewed through the crystal, the black line will be refracted into two balanced or overlapping black lines. If you don't see birefringence, it's very likely that this is a fake crystal made of glass.
The fourth is the inclusion. Any natural crystal has an inclusion, mineral, which differs only in the type and size of the inner inclusion. These inclusions are more visible to the naked eye. If the crystal clear "crystal" has no inner inclusions and is as clear as water, you should be careful. It is very likely that this is a fake crystal made of glass.
The fifth is hardness. The natural crystal is so hard that it can be scratched with the gravel on the ornament, leaving no traces; if there are streaks, it is a fake crystal.
Six is ​​brilliance. The natural crystal is placed vertically under the sun, and it radiates beautiful brilliance from any angle. Glass can't.
Seven is the magnetic field. Pinch two natural crystal stones with your thumb, forefinger and middle finger. The distance between the two stones is about 1-2 cm. They are slowly rotated and close to each other. Immediately, they can feel the wonderful power of attracting magnets. Especially the crystal ball is the most obvious, and the glass will not have this phenomenon.
In addition, the crystal spectrum can be analyzed by means of an infrared spectrometer to distinguish true and false crystals. Of course, this depends on whether you have this condition!
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