The most scientifically accurate way to prove authenticity is through an X-ray , which reveals the internal spiral structure and any artificial modifications.
A real conch has 3 to 7 ridges on its columella (the central pillar). Whelk shells, often sold as fakes, lack these ridges. dakshinavarti shankh buy
Unlike the Vamavarti (left-handed) shankh used for sounding, the Dakshinavarti is for worship only . The most scientifically accurate way to prove authenticity