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Things arent always as they look. This is especially true for the melo melo pearl and the pearl, two types of gemstones that arent actually pearls at all. Confusing? Yes, as these pearls resemble correct pearls in more ways than one. Both melo melo and the conch treasure are rare normal gems produced in marine animals; are used to create beautiful jewelry, and are called pearls; look like pearls. So just why arent they pearls? And if they arent correct pearls than what the heck are they? Non-nacreous pearls Apparently, not all pearls are made of nacre, the combination of aragonite calcium carbonate and conchiolin that is secreted from a mollusk and layered together to make what scientists call a nacreous treasure. Some marine animals, like the Queen conch and the melo melo sea snail, make lovely gems made up of non-nacreous calcium carbonate. Calcite, in the place of aragonite, will be the main content here. This product, by the way, is said to be just like the items that creates kidney stones in humans. Since they are non-nacreous, the melo melo pearl and the pearl are not considered true pearls by gemologists. Alternatively, they are classified as calcareous concretions and referred to as pearls. Notice the quotation marks surrounding the word gem. That punctuation is used to signify that the diamond is not a real, nacreous gem. This fine [http://blogs.rediff.com/gemstvjby/2014/09/02/reading-loose-cubic-zirconia-stones-understand-grades-of-quality-before-ordering-wholesale/ open in a new browser] site has many fresh cautions for where to consider it. Conch pearls Conch pearls are natural gems present in the Queen conch, Strombus gigas, a lovely marine dog valued for its attractive cover and delicious meat. Enter any popular Caribbean eatery and youre more likely to locate a variety of conch chowder and conch fritters on the menu. Note: Make sure to pronounce it correctly: conk, or you could get conched over the head. The formal image of the Bahamas and the Florida Keys, the Queen conch is caught in the warm, shallow waters of the Caribbean where it lives. The pearls are a delightful byproduct if the cover and meat are collected found by fisherman. Usually square or baroque and less than 3mm in diameteralthough much bigger types can be foundthe porcelain-shiny conch pearls exhibit the exact same colors as can be found on the animals layer interior: bronze, white, orange, and pink. A beautiful shade of salmon-pink will be the hottest color and generally commands the highest price. A distinctive feature of conch pearls, but the one that not all types display, is flaming, or chatoyancy. Due to the way the pearls levels are structured described as a silk-like or damp silk appearance and usually only present around the white pearls, flaming does occur. Unlike pearls formed with nacreous crystals, conch pearls are formed by concentric layers of fibrous crystals. The fire effect can be an optical illusion that results using this arrangement. An extremely desirable trait, relationship construction over a pearl may demand more money when compared to a pearl without this trait. Like real pearls, conch pearls are thought to be produced by the animal as a protective measure against an intruder. Although some efforts are underway, attempts to culture conch pearls, however, have been unsuccessful. Due to historical overfishing, the Queen conch has become protected in the Florida Keys, although the dog is caught in other areas of the Caribbean. When prepared, the Queen conch does not always include a pearl; the truth is such pearls are extremely rare. According to the Gemological Institute of America, only 1 in 10,000 Queen conch shells includes a pearl; increasing their appeal, very few of those are gem quality. For another viewpoint, consider taking a glance at: [http://about.me/tvgemstvgemszgmn success]. A relative newcomer to the entire world of attractive jewelry, the conch treasure was very much in fashion in Victorian-era baubles, but fell out of favor for some time. Conch pearls are again enjoying a rise in popularity, to-day. Anybody interested in jewelry made with a treasure should really be aware that the color of the gems fades over-time. While scientists are unsure why, some postulate that it has regarding ultra-violet rays breaking down the normal colors, though even in dark places, the treasures will eventually diminish. contamination, age and heat may also be thought to factor into the pearls fading. Conch pearls ought to be worn only occasionally, and its advisable to reduce their time in sunlight. Melo Melo pearls The Pilippines, the South China Sea, India and the Andaman Sea are home into a big orangey-brown gastropod called the melo melo sea snail. Such as the Queen conch, colorful non-nacreous pearls can be produced by this beautiful marine animal with its oversize scrolled shell. Ranging in color from color to yellow to red, these very rare calcareous concretions are generally round and usually very large. Clicking [http://www.purevolume.com/tvgemstvdcjl/posts/7390234/News+A+Fast+Guide+to+Wholesale+Cubic+Zirconia+ more information] possibly provides suggestions you could tell your aunt. Its theorized the animals capability to make pearls of such considerable sizes is because of its wide shell opening. In-fact, one notable melo melo pearl weighed-in at 397.52 carats and was said to be almost the size of a tennis ball. The coveted orange-colored melo melo pearl may show intense flame design, a very desirable trait, while, like the conch pearls, the brilliant color may fade over time. According to the Gemological Institute of America, as in nacreous pearl creation, the very unusual melo melo pearl is most likely the result of an intruderin this case thought to be established if the gastropods large base is worried by a nuisance. Boffins arent completely convinced of this theory, however. Trendy among Asians, melo melos are just now being appreciated by Western countries. Like conch pearls, attempts to culture melo melo gems have been lost, therefore, like pearls, the melo melo pearls on the market are rare and natural, and of-course, costly..