A pearl is a hard, shiny object produced within the soft tissue of a living shelled mollusk. perlais made of carbonate of soccer (chiefly aragonite or calcite) in Form crystal clear,
Quality Pearl Natural is specially importantare listed as precious stones and as objects of beauty, For these reasons, owning pearls has a great economic value, which is generated by the effort. human You beast necessary to make them.
It’s strange that pearls are supposed to piedras Precious, when most of these are mined underground. However, this is not the case with pearls. these little round pieces color blanco They form when an irritating factor, such as dust mites, Meal oh one parasitesenters between shells of musk or big oyster, They live in their inner covering, that is, in the wall fleshy where are your Organ,
Sensing an attack, they display an act of Self Defenseone that releases molluscs liquid containing aragonite (a carbonate mineral) and conquiolina (a protein), and when the secretion mixes with the intruder, it forms a material called nacre. Nacre is a substance that covers cavity Animal paleness. after a variable period Particle The end covered with one or more layers forms the pearl, and they take 10 years to make.
According to a study published in 2013 by the University of Granada, the fact that pearls have a circular contour depends on Qualification that the beads have to rotate during their development spicy,
However, not all oysters store pearls inside. So sometimes forced to get pearls. What is done in cultured beads to force Forbidden inside the foreign object so that the oyster starts from there to work, There are both natural and cultured pearls Reliable, the only thing that changes is human intervention in its process. Although we can also find pearls in the market Copy,
Separating them can seem complicated. experts They recommend passing the teeth through its surface, if it is sandy then it is authentic. Scrape it with a nail, if the dust comes out Natural or cultivated, if it is pasted it is manufactured.
These are the existing types of pearls:
In general, pearls are small in size, although some have been found to weigh around 35 kg, the value of which is unaccounted for. Stand out four type,
Cultivated in brackish waters of northern Australia, the Philippines and Indonesia, characterized by their silver and golden iridescent colors. Its cultivation time is between three to nine years.
They are built in the islands of French Polynesia and Oceanic peaceful, They are those whose color is black or brown. However there are also Grey, Green, Orange, Gold and Blue. Its cultivation time is two to three years.
Many people know them as pearls Japani, Due to their flat shape on one side, they are used in the manufacture of earrings. This pearl does not grow on the shell of the oyster but inside it. The cultivation time is about two years.
in fresh water
Also called freshwater pearls because they are cultivated in rivers and lakes China, Japan and the United States. Their cost is low and their cultivation time 6. happens between month and 4 years.