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A very popular Replica Concord Watches in the Guaymas area for Rver is a visit to the Perlas del Mar de Cortez pearl farm. It is at ITESM better known as Tec de Monterrey. Tec de Monterrey is an educational institution located inside a beautiful and tranquil bay, known as Bacochibampo Bay, Sea of Cortez. It is the first pearl farm in the region that shows the possibility of continued commercial success and has stirred a lot of excitement. How do you make a pearl? Mexican pearls are born out of two native pearl oysters, the ;Panamic Black-Lipped Pearl Oyster and the ;Rainbow-Lipped Pearl Oyster;. Pick a recipient oyster around 2 years old that is larger and older than the donor oyster. Select a donor oyster for its pearl characteristics, such as color and luster that they might impart to the cultured pearl. Now the delicate work begins. Like a surgeon performing delicate surgery a pearl technician begins the grafting process. The technician will use an assortment of surgical tools. He takes tissue from the donor pearl oyster, cuts it into small pieces and grafts it into several dozen recipient oysters. Replica Concord Watches Once the implants are done the oysters are suspended at a depth of 6 to 7 feet from the water su***ce in pocket like nets or rope chaplets. It will take about two years before the oysters are harvested. Will all of the implants produce pearls? Only about 20% will produce saleable cultured pearls. There are various estimates that put the yearly production of cultured pearls from this factory at around 10,000. Now you can understand why Mexican pearls are the rarest in the world and some of the most expensive. Look at the various types of pearls that the farm produces:Mabe or Half Pearl. This pearl is formed when one (or more) nucleus is attached between the oysters shell and its mantle. The oyster reacts to this ;intruder; by coating it with nacre, the substance that makes up the pearl. The shell is cut from the pearl and replaced with a backing made of mother of pearl. Mabe pearls, due to their unique shapes, result in some unique jewelry creations.Loose Pearls. The pearls most people instantly identify with the word pearl. They are not perfectly round but are in many other shapes Replica Concord Watches.