Aug 16
A pearl is a hard object that is produced within the soft tissues of a
living mollusk. A pearl is composed of calcium carbonate in small
crystalline form, which gets deposited on a piece of grit or other
foreign materials.
A pearl is a hard object that is produced within the soft tissues of a
living mollusk. A pearl is composed of calcium carbonate in small
crystalline form, which gets deposited on a piece of grit or other
foreign materials.