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The correct definition of a South Sea pearl– as described by CIBJO and GIA– is a pearl produced by the Pinctada maxima [20] pearl oyster. South Sea pearls are the color of their host Pinctada maxima oyster– and can be white, silver, pink, gold, cream, and any combination of these basic colors, including overtones of the various colors of the rainbow displayed in the pearl nacre of the oyster shell itself. Margarita pearls are extremely difficult to find today and are known for their unique yellowish color. All shelled mollusks can, by natural processes, produce some kind of "pearl" when an irritating microscopic object becomes trapped within its mantle folds, but the great majority of these "pearls" are not valued as gemstones. Nacreous pearls, the best-known and most commercially significant, are primarily produced by two groups of molluskan bivalves or clams. A nacreous pearl is made from layers of nacre, by the same living process as is used in the secretion of the mother of pearl which lines the shell. When Spanish conquistadors arrived in the Western Hemisphere, they discovered that around the islands of Cubagua and Margarita, some 200km north of the Venezuelan coast, was an extensive pearl bed (a bed of pearl oysters). One discovered and named pearl, La Peregrina pearl, was offered to Philip II of Spain who intended to give it as a gift for his daughter on the occasion of her marriage, but the King found it so beautiful that he kept it for himself. Later, he elevated it to be part of the Spanish Crown Jewel. From then on, the pearl was recorded in every royal inventory for more than 200 years. According to Garcilasso de la Vega, who says that he saw La Peregrina at Seville in 1607, [38] this was found at Panama in 1560 by a slave worker who was rewarded with his liberty, and his owner with the office of alcalde of Panama.
Silver Pearl Oyster Necklace - Etsy UK
Bodycolour is the overall dominant colour of a pearl. Overtone, the secondary colour, is the translucent colour that lies on top of the bodycolour. It’s usually present over the entire pearl surface or a large part of it. Orient appears when there’s more than one translucent colour or overtone over the bodycolour. It’s visible in a much smaller area on the pearl surface and can come in a form of iridescent rainbow colours. Comes with clear instructions and included gloves and even a little thing to make the can easier to open. The clam was only about an inch big in diameter, so I was really surprised with how big the pearl was. It is almost as large as a salt water pearl I got from The Pearl Factory, and compares in quality. It must have been taking up a lot of room in that little clam.The twelve gates of the New Jerusalem are reportedly each made of a single pearl in Revelation 21:21, that is, the Pearly Gates. "And the twelve gates were twelve pearls: every several gate was of one pearl: and the street of the city was pure gold, as it were transparent glass."
Oyster Pearl Necklace - Etsy
Senaveratna, John M (1930). The story of the Sinhalese: From the most ancient times up to the end of "The Mahavasna", or great dynasty; Vijaya to Maha Sena (B.C. 543 to A.D. 302). W.M.A. Wahid. pp.16–19, 46, 130, 144–48, 161–63, 213. ISBN 9788120612716. Archived from the original on December 20, 2017. a b "History of the Discovery and Appreciation of Pearls – the Organic Gem Perfected by Nature". internetstones.com. Archived from the original on December 6, 2015 . Retrieved January 31, 2016. Akoya Pearls are the classic, round white pearls that most people are familiar with. They’re mainly cultivated in Japan and China in a saltwater oyster species called Pinctada fucata martensii. Natural Akoya pearls grown in this species are extremely rare.A few species produce pearls that can be of interest as gemstones. These species include the bailer shell Melo, the giant clam Tridacna, various scallop species, Pen shells Pinna, and the Haliotis iris species of abalone. Pearls of abalone, or paua, are mabe pearls, or blister pearls, unique to New Zealand waters and are commonly referred to as 'blue pearls'. They are admired for their incredible luster and naturally bright vibrant colors that are often compared to opal. Another example is the conch pearl (sometimes referred to simply as the 'pink pearl'), which is found very rarely growing between the mantle and the shell of the queen conch or pink conch, Strombus gigas, a large sea snail or marine gastropod from the Caribbean Sea. These pearls, which are often pink in color, are a by-product of the conch fishing industry, and the best of them display a shimmering optical effect related to chatoyance known as 'flame structure'. Main article: Keshi pearls A blister pearl, a half-sphere, formed flush against the shell of the pearl oyster. Find sources: "Pearl"– news · newspapers · books · scholar · JSTOR ( March 2018) ( Learn how and when to remove this template message)
Oyster Pearl Necklace - Etsy UK
Regardless of how pearls are formed, whether natural or cultured, most pearls harvested have an average to low quality. Fine quality pearls are very rare. This is largely due to the nature of pearl growth inside the oyster. The oyster secretes nacre slowly to coat the intruder layers after layers. It is the same substance that makes mother-of-pearl, the shiny surface on the inner side of the shell. As an organic gem, these layers of nacre are not always evenly distributed to form a tight structure. Hence the quality varies drastically. In other words, most natural pearls, if found, rarely have qualities that worth a fortune. Japanese pearl producers also invested in producing cultured pearls with freshwater mussels in the region of Shanghai, China. China has since become the world's largest producer of freshwater pearls, producing more than 1,500 metric tons per year (in addition to metric measurements, Japanese units of measurement such as the kan and momme are sometimes encountered in the pearl industry). Pearlers were mostly Highland traveling people..." Finlay, Victoria. Jewels: A Secret History (Kindle Location 1296). Random House Publishing Group. Kindle Edition. Freshwater Pearls are the most widely available pearls seen in jewellery today. Hence, they’re the most affordable types of pearls in the market. Freshwater pearls are commonly grown inside the Hyriopsis cumingii mollusc in rivers, lakes and ponds in China, and their production has also started to grow in Southeast Asia in recent years. Despite their huge price difference, both cultured and natural pearls are real pearls. They are grown from pearl-bearing oysters in either saltwater or freshwater. The pearl formation process is exactly the same for both natural and cultured pearls.Because pearls are made primarily of calcium carbonate, they can be dissolved in vinegar. Calcium carbonate is susceptible to even a weak acid solution because the crystals react with the acetic acid in the vinegar to form calcium acetate and carbon dioxide. The metaphor of a pearl appears in the longer Hymn of the Pearl, a poem respected for its high literary quality, and use of layered theological metaphor, found within one of the texts of Gnosticism.
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