How to identify a genuine rudraksha

Today, there are so many types of rudrakshas are available. Likewise imitations of rudrakshas are also available. But people wants to realise the peculiar qualities of a real rudraksha. Because the shortage of knowledge about rudraksha makes people foolish by some one. In order to identify a genuine rudraksha, people should notice the qualities of a real rudraksha. Sometimes the fake rudraksha will feel like real, but don't work. The first major thing to identify a genuine rudraksha is colour change. Original colour of a real rudraksha is reddish, but when we buy a rudraksha to identify it's genuinity, boil rudraksha in water for a few hours and if rudraksha has any effect on colour change, then it may not be real. Because there will be no colour change for genuine rudraksha. Real rudraksha will sink immediately when it dipped into water, but fake rudraksha will break into pieces after sometimes. Genuine rudraksha has the ability to provide higher electromagnetic force after worshipping it, but fake rudraksha will only have lower electromagnetic force after worship. Real rudraksha looks like ripened and natural, but fake is not ripened and unnatural, Genuine rudraksha will release a good smell, but will release a good smell, but will never emit a smell. There are also some scientific techniques to identify a genuine rudraksha. The first one is X ray technique. X ray test of rudraksha means that people can see the internal structure without damaging the beads. Another test is CT scanning. It is more costly than X ray technique. Another test to identify to real rudraksha is a copper coin test. Real rudraksha will have rotation after gripped with copper coin at the ends and fake rudraksha will not rotate at this time.