Pearl ID

Since it’s difficult to unobtrusively rub a string of pearls across
your teeth – you can also rub two pearls against each other. Try
it first with known pearls and known glass to feel the difference.

Elaine Luther Chicago area, Illinois, USA Metalsmith, Certified PMC
Instructor Studio 925; established 1992 @E_Luther

    Since it's difficult to unobtrusively rub a string of pearls
across your teeth -- you can also rub two pearls against each
other."  

here is a better idea, learn how to identify pearls and not ruin
them buy rubbing them together and potentialy damaging them, when you
ruin a 50,000 dollar strand of pearls and then you say “well i rubbed
them on my teeth” you are in a lot of trouble. take a class or get
more info besides, there are some really good immitation, simulants,
synthetics and other types of pearls that vary in price

Aaron A Tracy