Alphabetic Index : A B C D E F G H I J K L M N O P Q R S T U V W
X Y Z white, pink, silver-, cream-, golden-colored, green, blue,
black, yellow, rainbow2369 |weak, cannot be evaluated. Genuine
black p .: Red to reddish River-p.: Strong: pale green| A pearl
is a hard object produced within the soft tissue (specifically
the mantle) of a living shelled mollusk. Just like the shell of
a clam, a pearl is made up of calcium carbonate in minute
crystalline form, which has been deposited in concentric layers.
The ideal pearl is perfectly round and smooth, but many other
shapes of pearls (baroque pearls) occur. The finest quality
natural pearls have been highly valued as gemstones and objects
of beauty for many centuries, and because of this, the word
pearl has become a metaphor for something very rare, fine,
admirable, and valuable. The most valuable pearls occur
spontaneously in the wild, but they are extremely rare. These
wild pearls are referred to as natural pearls. Cultured or
farmed pearls from pearl oysters an