The Beautiful of Pearls
Apr12
Pearls are hard objects which are made up of calcium carbonate in crystalline form that has been deposited in concentric layers. It’s produced within the soft tissue, especially the mantle of a living shelled mollusk. The ideal form of pearls are round and smooth perfectly. But, there are also many other form or shapes of pearls like baroque pearls. Because of its shapes or forms, the finest quality natural pearls have been highly valued as gemstones and objects of beauty things for many years. Pearls which are valued as gemstones and objects of beauty are almost nacreous and colorou. And because of this case, the pearls have become a metaphor for something which is very rare, fine, admirable, unique, beautiful and valuable.Pearls can be found in the freshwater and saltwater, and they sometimes look similar. But, actually, they are different, because they come from different sources. Pearls which are in freshwater usually form in many kinds of species of freshwater mussels, family Unionidae. The example of shell of one species of freshwater pearl mussel is Margaritifera.They usually live in lakes, rivers, ponds, and other bodies of natural freshwater. The unique of those freshwater pearls mussels is they occur not only in hot climate, but also in cold climate places, like in Scotland. The most important thing is most of freshwater cultured pearls sold today come from China. And the freshwater pearls are usually harvested after two until seven years.
Beside the examples of freshwater and saltwater pearls, there are South Sea pearls, for example Pinctada maxima and etc. Pinctada maxima, which is known as South Sea Pearl, can survive the subsequent surgery to remove the finished pearl. It is often implanted with a new, larger beads as part of the same procedure and returns to the water for another two until three years of growth.. Today, the South Sea pearl like Pinctada Maxima is usually harvested after two until four years. Then, it’s sold on the market all over the world.
