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No. oysters do not have an advance neurological system.
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Do natural pearls require sunlight to develop?
No. Natural pearls grow in pearl oysters deep underwater, where not much sunlight can usually reach them. What initiates pearl growth is when an irritant infiltrates the shell of an oyster, and the oyster secrets nacre to coat the irritant and protect its soft flesh. There's a lot of good information on pearls at the link below.
Pearls are in what sea creatures?
Mother-of-Pearl is found in Oyster shells
How long does a pearl in an oyster take to grow?
In fact every clam, not just the oyster, can make pearls. Pearls are made because of a tiny bit of dirt, sand or whatever, comes inside the clam. The clam then makes 'mother-of-pearl' which is a substance that makes a pearl after a pretty long time.
How pearl is being produce?
Pearl is produced by an oyster to protect itself from something that got inside its shell. It secretes nacre, which becomes pearl. Cultured pearls are made by placing a "seed" inside of the oyster shell, and letting the oyster work. Over time, the oyster will deposit nacre onto the seed, forming a pearl.
What sea creatures are pearls found in?
They can be found almost any shelled mollusk such as the pearl oyster
Are pearls considered a disease of oysters?
No. Pearls are a byproduct of sand getting into the mouth of the oyster, and the oyster wrapping mother-of-pearl cells from it's body around the sand grain to decrease the irritation from the grain of sand.
What is a wooden pearl?
Pearls are 'grown' by some irritant entering an oyster and the oyster growing a layer of mother-of-pearl (nacre) around it. In natural pearls this is usually a grain of sand and it takes a lot of growing to get a pearl of marketable value. Artificial (cultured) pearls are made by people inserting some round object (the size and shape of the desired pearl) and letting the oyster grow a thin layer of mother-of-pearl around it. This object can be anything but shell or porcelain are preferred as they do not break down. If one uses wood then, over time, the wood will eventually rot and the 'pearl' will fall apart. Such pearls are not valuable and are considered a scam. The only way to tell real pearls from artificial pearls is by using an x-ray machine however it is still difficult to tell what the centre object is made of.
Where does Pearl earrings come from?
Pearls are usually from oysters. Most pearls today are cultured pearls, meaning that they are specially done. What they do is to put an irritation into the oyster shell so that the oyster can make a pearl. A pearl is really just kind of a "tumor" thingie. The oyster can't get rid of some irritants like sand or grit, so it will deposit something called nacre over the thing that is bugging it. Over time, this will become a real pearl and it's size depends on how long the oyster has to coat the thing. The reason it's called a cultured pearl is that man will put the "dirt" in the pearl rather than it happening naturally. So after the pearl has been taken from the oyster, jewelers will mount it on an earring mounting. These mountings are usually precious metal, and the price of the earrings depends on the quality of the pearl, the shape of the pearl, and the quality of the earring mounting.
What are pearls made from?
A pearl is made up of calcium carbonate in minute crystalline form, which has been deposited in concentric layers. The pearl comes from the oyster.
Are pearls rare or common?
Finding a natural pearl inside of an oyster in the wild is very rare. You can purchase small, natural pearls, but they are very expensive because they are so rare. In the wild, only about 1 in 10,000 oysters have a pearl. The majority of pearls are farmed, and these are very common.
What are pearls worth?
The value of pearls, like other gemstones, depends on a number of factors. Such as, size - larger pearls are often rejected by the oyster therby making larger pearls rarer; quality, ie. how spherical they are, how blemished the pearl is, the nacre; and colour.
What mollusk is capable of making a gem quality pearl?
Pearl oysters or also called marine bivalve molluscs. They are the only oyster to produce south sea pearls.
