White Freshwater Pearl Earrings
Pearls are the product of a reaction of entrenchment of a foreign particle in the soft body of molluscs, especially bivalves. The best known pearls are regarded as gems or precious stones, on the particular symmetry and polish. The pearls are overwhelmingly produced by oysters Pteriidae belonging to the family. Natural pearls are formed when a foreign body penetrates into the body of the mollusk, which reacts slowly covering the particle with a mixture of crystals of calcium carbonate (CaCO3) and a protein called conchiolin, forming the substance known as nacre, which is the substance that lines the mantle cavity of the animal (the inner walls of the valves). After a variable period ends particle covered by one or more layers of nacre, forming a pearl. The beads are size, color and shape variables. The value of the pearl is determined by various criteria but it can be said to focus on three: a desirable form (eg, the perfect spheres or "tears"), the rarity of its color (almost the entire range between white and black) and of course the size. Although the aesthetic and size are critical in the assessment of a pearl, the final price depends largely on the fashion trends of the moment. The brightness of the white freshwater pearl earrings comes from the light reflection in the glassy surface, while the sheen comes from the refraction and diffraction of light in multiple translucent layers of nacre form a white freshwater pearl earrings either. It is unknown what was the first town that drew the white freshwater pearl earrings oysters, and then use them as decoration. But because the beads have luster and shine almost immediately exits the oyster that produced it is very possible that have been used as adornment since prehistoric times. What can be said is that the manufacture of white freshwater pearl earrings jewelry was based on a fairly widespread and favored among ancient peoples. However, due to their extreme rarity, the beads were one of the most valuable gems known to the ancient world, reserved for the nobility and people extremely wealthy. It seems that the custom of adorning themselves with beads originated in India and elsewhere in Asia, where the Phoenicians spread throughout Europe. The Greeks called the white freshwater pearl earrings daisy, but does not seem there was widespread use until after the war of the Persians and Alexander's conquests. In Asia Minor spread his job after the conquest of Lydia by Cyrus. In Proverbs repeatedly spoken pearls, [1] [2] which indicates that the Hebrews knew. During the rule of the Ptolemies in Egypt, the use of beads acquired extraordinary proportions, and later the great lords of our courts of Europe were using the beads not only for decoration, used in necklaces, bracelets, earrings, rings, etc. . , but for dresses embroidered or simply as a garnish for them. [3]. Currently pearls do not have much monetary value as in the past, mainly because most of them are cultivated, which has devalued the increase in supply. Hence, many parables [4] and those that have survived to the present concerning the proverbial value of the pearls do not have the same resonance and semantic value today. Peregrina white freshwater pearl earrings is a white freshwater pearl earrings of unusual size and shape, considered one of the most valuable gems and legendary in the history of Europe. Discovered in the waters of the white freshwater pearl earrings Islands in Panama in the sixteenth century passed into the hands of King Philip II of Spain as part of the jewels in the crown of Spain. In 1969 the Pilgrim goes to auction, and Richard Burton's purchases for the symbolic amount of $ 37,000 as a gift to his beloved Elizabeth Taylor. Currently Liz Taylor is still the owner, but said that a poodle nipped actress white freshwater pearl earrings and caused a few notches. It is a type of cultured white freshwater pearl earrings in the salt waters of northern Australia, Indonesia and the Philippines. It has a color range from white to black. Are noted for their silver and gold iridescence. Reach sizes between 9 and 28 mm. Its shape can be perfectly round to take an asymmetrical shape and medium to high brightness. are the best of its kind. The price varies depending on its brightness. They are grown in temperate in salt water of French Polynesia by Pinctada Margaritifera Oyster. They can be of different colors: gray, green, orange, gold, blue and black. Cultured pearls are the Akoya saltwater, Asia. They have a round and symmetrical. Their size varies between 6 and 8. 5 mm. This pearl is difficult and has brighter growth than are cultured in freshwater. Its color ranges from cream to pink. They are grown in lakes, rivers and farms in China. They measure between 3. 5 and 7 mm. They have asymmetrical shape and brightness that ranges from medium to high. Cultured pearls in this type of water are mostly white, but they can be pink. They are freshwater cultured pearls, mainly in lakes and rivers of China, although its production is also done-more-restricted in Japan and the United States. It is organic, meaning that comes from a living being. Their culture time ranging from 6 months to 4 years and takes place within the family pearly mussels mussels Unionist Party. The main feature of these pearls is their abundance, as they produce up to 1,800 metric tons annually, using a crop production system quite different from marine cultured pearls: Pearls are produced mainly within the mantle of mussels . Most do not receive a white freshwater pearl earrings nucleus, as is the case of cultured pearls and marine origin but recently have found a variety of materials for the production of these pearls, such as waste pearls, white freshwater pearl earrings nuclei, buttons white freshwater pearl earrings or cores of the giant clam Tridacna gigas, a body protected from the list of CITES. Baroque: show an irregular shape pearls. They are usually the least valuable, although there may be specimens that come to be worth more than round. Ringed or ribbed, have regular lines concave rings perpendicular to an axis of revolution than a third of the surface of the pearl. They are hemispherical cultured pearls. Grow attached to the inside of the shell of an oyster rather than within the body of it. They are grown mainly in Japan, Indonesia and Australia. It is an organic gem. The time of cultivation of these pearls ranges from six months to two years. They are relatively easy to obtain, which makes its value is lower than round pearls. These pearls are semiredondas, since one side of the white freshwater pearl earrings is round, while the other is flat. This morphology allows them to be used in jewelry so you can hide the flat side. ? Landmann, NH, PM Mikkelsen, R. Bieler and B. Bronson. 2001. Pearls: A Natural History. American Museum of Natural History. Harry N. Abrahams, Japan. 231 p. . . .
